c_stl范例大全.pdf

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1、Sample of STLSTL范 例()容器部分Vector-1Deque-20List-38Set-66Multiset-88Map-98Multimap-113Stack-136Queue-138Priority_queue-139VectorconstructorsSincludeSincludeSincludeincludeusing namespace std;int main()string str=Alex，“John,Robert;/empty vector objectvector vl;/creates vector with 10vector v2(10);/creat

2、es vector with 10/and assign value 0 forvector v3(10,0);empty elementselements,each/creates vector and assigns/values from string arrayvector v4(str+0,str+3);vector:iterator sit=v4.begin();while(sit!=v4.end()cout *slt+；cout endl;/copy constructorvector v5(v4);for(int i=0;i3;i+)cout v5i ；cout endl;re

3、turn 0;OUTPUT:/Alex John Robert/Alex John Robertassignincludettincludettincludettincludeusing namespace std;i n t m ai n ()(i n t ary=l,2,3,4,5;vecto r v;/assi g n to th e th e co n tai n s o fv.assi g n(ary,ary+5);co py(v.b eg i n (),v.en d(),o stream _ i terato r(co ut,z，)；co ut en dl;/repl ace v

4、f o r 3 co pi es o f 100v.assi g n(3,100);co py(v.b eg i n (),v.en d(),o stream _ i terato r(c o u t,)；co ut en dl;return 0;)OUTPUT:/1 2 3 4 5/100 100 100attti n cl ude tti n cl ude usi n g n am espace std;i n t m ai n ()(vecto r v(3,0);v0=100;v.at(1)=200;f o r(i n t i=0;i 3;i+)co ut v.at(i)co ut en

5、 dl;return 0;OUTPUT:/100 200 0b acktti n cl ude Si n cl ude Sinclude Sinclude using namespace std;templateclass Member(public:Member(T t,D d):name(t),sal(d)void print();private:T name;D sa l;)；templatevoid Member:print()(cout name sal endl;=int main()(typedef Member M;vector v;v.push_back(M(Robert”,

6、60000);v.push back(M (z，Linda，z,75000);vector:iterator It=v.begin();cout ”Entire vector/endl;while(It!=v.end()(It+)-print();cout endl;cout ”Return from back()endl;v.back().print();return 0;O UTPUT:/EntireRobertLindaReturnLindavector:6000075000from back()75000beginSinclude Sinclude ttinclude Sinclude

7、 using namespace std;int main()(vector v(5);iota(v.begin(),v.end(),1);vector:iterator It=v.begin();while(It!=v.end()cout *It+；cout endl;/third element of the vectorIt=v.begin()+2;cout *It endl;return 0;OUTPUT:/1 2 3 4 5/3capacityinclude#include using namespace std;int main()(vector v(10);cout ”Size

8、of v 二 v.size()endl;cout ”Capacity of v=v.capacity()endl;v.resize(100);cout ”After resizing:endl;cout ”Size of v=z/v.size()endl;cout ”Capacity of v=v.capacity()endl;return 0;OUTPUT:/Si ze o f v=10/Capaci ty o f v=10/Af ter resi zi n g:/Si ze o f v=100/Capaci ty o f v=100cl eari n cl ude#i n cl ude S

9、i n cl ude usi n g n am espace std;tem pl ate cl ass Pri n t(pub l i c:vo i d o perato r()(T&t)(co ut t ；);=i n t m ai n ()(vecto r v(10);Pri n t pri n t;f i l l (v.b eg i n(),v.en d(),5);co ut ”Vecto r v:；f o r_ each (v.b eg i n (),v.en d(),pri n t);co ut en dl;co ut ”Si ze o f v=，z v.si ze()en dl;

10、co ut v.cl ear”en dl;v.cl ear 0 ;co ut ”Vecto r v:；f o r_ each (v.b eg i n (),v.en d(),pri n t);co ut en dl;co ut ”Si ze o f v=v.si zeO en dl;co ut ”Vecto r v i s ；v.em pty()?co ut :co ut n o tcout ”empty”endl;return 0;)/Vector v:5 5 5 5 5 5 5 5 5 5/Size of v=10/v.clear/Vector v:/Size of v=0/Vector

11、v is emptyemptySinclude Sinclude using namespace std;int main()vector v;cout ”Vector is ；v.empty 0?cout :cout notcout ”empty”endl;v.push back(lOO);cout ”Vector is ；v.empty()?cout :cout notcout ”empty”endl;return 0;)/Vector is empty/Vector is not emptyendSinclude Sinclude Sinclude include using names

12、pace std;int main()vector v(5);iota(v.begin(),v.end(),1);vector:iterator It=v.begin();while(It!=v.en d()cout *It+；cout endl;/last element of the vectorIt=v.end()-1;cout *It endl;return 0;)OUTPUT:/1 2 3 4 5/5eraseSinclude#includettincludeWincludeusing namespace std;int main()(vector v(10);vector:iter

13、ator It;for(int i=0;i10;i+)vi=i+1;copy(v.begin(),v.end(),ostream _iterator(cout,)；cout endl;It=v.begin()+2;/remove third elementv.erase(It);copy(v.begin(),v.end(),ostream_iterator(c o u t,)；cout endl;It=v.begin0;/remove 2 elements from beginning fo vv.erase(It,It+2);copy(v.begin(),v.end(),ostream_it

14、erator(cout,z，)；cout endl;return 0;O UTPUT:/1 2 3 4 5 6 7 8 9 10/1 2 4 5 6 7 8 9 10/4 5 6 7 8 9 10frontttinclude Sinclude Sinclude#include using namespace std;templateclass Memberpublic:Member(T t,D d):name(t),sal(d)void print();private:T name;D sa l;);templatevoid Member:print()(cout name sal endl;

15、)=int main()(typedef Member M;vector v;v.push back(M(，zLindaz，,75000);v.push_back(M(Robert”,60000);vector:iterator It=v.begin();cout ”Entire vector:“endl;while(It!=v.end()(It+)-print();cout endl;cout ”Return from front()，z endl;v.front().print();return 0;OUTPUT:/En ti re vecto r:/Li n da75000/Ro b e

16、rt60000/Return f ro m f ro n t()/Li n da75000i n sert#i n cl ude Si n cl ude Si n cl ude Si n cl ude usi n g n am espace std;tem pl ate cl ass Pri n tpub l i c:vo i d o perato r()(T&t)(co ut t ；);=i n t m ai n ()(i n t ary5;f i l l (ary,ary+5,1);vecto r v;vecto r:i terato r It;Pri n t pri n t;co py(

17、ary,ary+5,b ack i n serter(v);co ut ”vecto r v:；f o r_ each (v.b eg i n (),v.en d(),pri n t);co ut en dl;It=v.b eg i n ();/i n sert val ue 5 at th e po si ti o nco ut ，zv.i n sert(It,5):；v.i n sert(It,5);f o r_ each (v.b eg i n (),v.en d(),pri n t);co ut en dl;/i n sert ran g e ary+2-ary+5 at th e p

18、o si ti o nIt=v.b eg i n ()+5;co ut z，v.i n sert(It,ary+2,ary+5:；v.i n sert(It,ary+2,ary+5);f o r_ each (v.b eg i n (),v.en d(),pri n t);co ut en dl;/i n sert 2 val ue o f 20 at th e po si ti o nIt=v.en d()-2;co ut ，zv.i n sert(It,2,20):v.i n sert(It,2,20);f o r_ each (v.b eg i n (),v.en d(),pri n t

19、);co ut en dl;return 0;)OUTPUT:/vecto r v/v.i n sert(It,5)/v.i n sert(It,ary+2,ary+5/v.i n sert(It,2,20)1 1 1 1 15 1 1 1 1 15 1 1 1 1 1 1 1 15 1 1 1 1 1 1 20 20 1 1m ax_ si zetti n cl ude Si n cl ude usi n g n am espace std;i n t m ai n ()vecto r v(10);co ut ”Si ze o f v v.si ze()en dl;co ut Max_ si

20、 ze o f v 二 v.m ax_ si ze 0 en dl;return 0;)OUTPUT:/Si ze o f v=10/Max_ si ze o f v=1073741823po p_ b ackSi n cl ude Sinclude Sinclude using namespace std;template class Print(public:void operator()(T&t)cout t ；);/=int main()vector v;Print print;for(int i=0;i5;i+)v.push_back(i+l);while(!v.empty()(fo

21、r_each(v.begin(),v.end(),p rin t);cout endl;v.pop_back();return 0;OUTPUT:/1 2 3 4 5/1 2 3 4/1 2 3/1 2/1push_backSincludeSincludeincludettincludeusing namespace std;template class Namepublic:Name(T t):name(t)void print()(cout name ;)private:T name;=int main()(typedef Name N;typedef vector V;V v;N nl(

22、Robert);N n2(Alex);v.push_back(nl);v.push_back(n2);/unnamed object of the type Namev.push_back(NC，Linda，/);V:iterator It=v.begin0;while(It!=v.end()(It+)-print();cout endl;return 0;)O UTPUT:/Robert Alex Lindarbegin and rend#include ttinclude Sinclude Sinclude Sinclude ttinclude using namespace std;cl

23、ass IDf ri en d b o o l o perato r (co n st ID&,co n st ID&);pub l i c:ID(stri n g n am e,i n t sco re):n am e(n am e),sco re(sco re)vo i d di spl ay()(co ut.setf(i o s:l ef t);co ut setw(3)sco re n am e en dl;)pri vate:stri n g n am e;i n t sco re;);/-/co m perati o n f un cti o n f o r so rti n gb

24、 o o l o perato r (co n st ID&a,co n st ID&b )(return a.sco re b.sco re;/-typedef vecto r Vecto r;/n ew n am e f o r exi sti n g datatypei n t m ai n ()(Vecto r v;Vecto r:i terato r Iter;v.push _ b ack(ID(Sm i th A，96);v.push _ b ack (ID(z，Am stro n g B.,91);v.push _ b ack (ID(Z/Watso n D.，82);f o r

25、(Iter=v.b eg i n();Iter!=v.en d();Iter+)Iter-di spl ay();so rt(v.b eg i n(),v.en d0);/so rt al g o ri th mco ut en dl ”So rted b y Sco re”en dl;co ut /，=/di spl ay();co ut en dl ”Reverse o utput”en dl;co ut =en dl;Vecto r:reverse_ i terato r r=v.rb eg i n O;wh i l e(r!=v.ren d()co ut redi spl ay();c

26、o ut en dl;return 0;OUTPUT:/96 Sm i th A./91 Am stro n g B./82 Watso n D./So rted b y Sco re/=/82 Watso n D./91 Am stro n g B./96 Sm i th A./Reverse o utput/=/96 Sm i th A./91 Am stro n g B./82 Watso n D.reserveSi n cl ude Si n cl ude usi n g n am espace std;i n t m ai n ()(vecto r v(5,0);/5 el em e

27、n ts,each -val ue 0/*-*/co ut Si ze o f v=v.si ze()en dl;co ut ”Capaci ty v=v.capaci ty()en dl;co ut Val ue o f each el em en t i s-；f o r(i n t i =0;i v.si ze();i+)co ut vi ；co ut en dl;v0=5;/n ew val ue f o r f i rst el em en tvl =8;v.push _ b ack(3);/creates n ew(6th)el em en t o f vecto r,v.push

28、 _ b ack(7);/auto m ati cal l y i n creases si zeco ut en dl;/capaci ty o f vecto r vco ut ”Si ze o f v=v.si ze()en dl;co ut ”Capaci ty v=X v.capaci ty()en dl;co ut ”Val ue o f each el em en t i s-；f o r(i n t i =0;i v.si ze();i+)cout vi ；cout endl endl;v.reserve(100);/increase capacity to 100cout ”

29、Size of vl_int=v.size 0 endl;cout ”Capacity vl_int=v.capacity()endl;int size=sizeof(v);/how big is vector itselfcout ”sizeof v=size endl;return 0;OUTPUT:/Size of v=5/Capacity v=5/Value of each element is-0 0 0 0 0/Size of v=7/Capacity v=10/Value of each element is-5800037/Size of v=7/Capacity v=100/

30、sizeof v=12resizeSinclude#include Sinclude Sinclude using namespace std;int main()(vector v(5);for(int i=0;i5;i+)vi=i*2;copy(v.begin(),v.end(),ostream_iterator(cout,z，)；cout endl;v.resize(7,100);copy(v.begin(),v.end(),ostream_iterator(cout,/z)；cout endl;v.resize(4);copy(v.begin(),v.end(),ostream_ite

31、rator(c o u t,)；cout endl;return 0;OUTPUT:/0 2 4 6 8/0 2 4 6 8 100 100/0 2 4 6sizeSinclude Sinclude#include ttinclude using namespace std;template class Print(public:void operator()(T&t)(cout t ；);=int main()(vector v(5);Print print;cout ”Size of v=zz v.size()endl;fill(v.begin(),v.end。，*);for_each(v

32、.begin(),v.end(),print);cout endl;for(int i=0;i v.size();i+)cout vicout endl;for(int i=0;i5;i+)co ut ”Si ze o f v 二；f o r_ each(v.b eg i n(),v.en d(),pri n t);co ut en dl;v.po p b ack ();return 0;)OUTPUT:/Si ze o f v=*/Si ze o f v=/Si ze o f v=/Si ze o f v=/Si ze o f v=/Si ze o f v=5*swapWi n cl ude

33、 Si n cl ude Si n cl ude usi n g n am espace std;tem pl ate cl ass Pri n t(pub l i c:vo i d o perato r()(T&t)(co ut t ；);=i n t m ai n ()(i n t ary =1,2,3,4,5,6,7,8,9,10;Pri n t pri n t;vecto r vl (ary,ary+7);vecto r v2(ary+7,ary+10);co ut ”Vecto r vl :；f o r_ each (vl.b eg i n (),vl.en d(),pri n t)

34、;co ut en dl;cout ”Size of vl=vl.size()endl endl;cout ”Vector v2:；for_each(v2.begin(),v2.end(),print);cout endl;cout ”Size of v2=v2.size()endl endl;vl.swap(v2);cout ”After swapping/endl;cout ”Vector vl:；for_each(vl.begin(),vl.end(),print);cout endl;cout Size of vl=vl.size()endl endl;cout ”Vector v2:

35、；for_each(v2.begin(),v2.end(),print);cout endl;cout ”Size of v2=v2.size()endl endl;return 0;)OUTPUT:/Vector vl:1 2 3 4 5 6 7/Size of vl=7/Vector v2:8 9 10/Size of v2=3/After swapping:/Vector vl:8 9 10/Size of vl=3/Vector v2:1 2 3 4 5 6 7/Size of v2=7Dequeconstructorsttinclude ttinclude Sinclude incl

36、ude using namespace std;int main()string s tr=Alex，“John,Robert;/empty deque objectdeque d l;/creates deque with 10 empty elementsdeque d2(10);/creates deque with 10 elements,/and assign value 0 for eachdeque d3(10,0);/creates deque and assigns/values from string arraydeque d4(str+0,str+3);deque:ite

37、rator sit=d4.begin();while(sit!=d4.en d()cout *slt+；cout endl;/copy constructordeque d5(d4);for(int i=0;i3;i+)cout d5i ；cout endl;return 0;)OUTPUT:/Alex John Robert/Alex John RobertassignSinclude Sinclude Sinclude ttinclude using namespace std;int main()(int ary=l,2,3,4,5);deque d;/assign to the the

38、 contains ofd.assign(ary,ary+5);copy(d.begin(),d.end(),ostream_iterator(cout,);cout endl;/replace d for 3 copies of 100d.assign(3,100);copy(d.begin(),d.end(),ostream_iterator(c o u t,)；cout endl;return 0;OUTPUT:/1 2 3 4 5/100 100 100at#include ttinclude using namespace std;int main()(deque d(3,0);d0

39、=100;d.at(1)=200;for(int i=0;i3;i+)cout d.at(i)cout endl;return 0;O UTPUT:100 200 0backSinclude Sinclude#include Sinclude using namespace std;templateclass Member(public:Member(T t,D d):name(t),sal(d)void print();private:T name;D sal;);templatevoid Member:p rin t()(cout name sal endl;)/=int main()(t

40、ypedef Member M;deque d;d.push_back(M(Robert”,60000);d.push back(M (z，Linda，z,75000);deque:iterator It=d.begin();cout ”Entire deque:print();cout endl;cout ”Return from back()zz endl;d.back().print();return 0;OUTPUT:/Entire deque:/Robert 60000/Linda 75000/Return from back()/Linda 75000beginSinclude S

41、include Sinclude Sinclude using namespace std;int main()(deque d(5);iota(d.begin(),d.end(),1);deque:iterator It=d.begin();while(It!=d.end()cout *It+；cout endl;/third element of the dequeIt=d.begin()+2;cout *It endl;return 0;OUTPUT:/1 2 3 4 5/3clearttinclude ttinclude ttinclude using namespace std;te

42、m pl ate cl ass Pri n t(pub l i c:vo i d o perato r()(T&t)(co ut t ；);=i n t m ai n ()(deque d(10);Pri n t pri n t;f i l l (d.b eg i n(),d.en d(),5);co ut ”Deque d:；f o r_ each (d.b eg i n (),d.en d(),pri n t);co ut en dl;co ut ”Si ze o f d=zz d.si ze()en dl;co ut d.cl ear”en dl;d.cl ear 0 ;co ut ”D

43、eque d:；f o r_ each (d.b eg i n (),d.en d(),pri n t);co ut en dl;co ut ”Si ze o f d=d.si ze()en dl;co ut ”Deque d i s ；d.em pty()?co ut :co ut n o tco ut ”em pty”en dl;return 0;)/Deque d:5 5 5 5 5 5 5 5 5 5/Si ze o f d=10/d.cl ear/Deque d:/Si ze o f d=0/Deque d i s em ptyem ptySi n cl ude Sinclude u

44、sing namespace std;int main()(deque d;cout ”Deque is ；d.empty()?cout :cout notcout ”empty”endl;d.push_back(100);cout ”Deque is ；d.empty()?cout :cout notcout ”empty”endl;return 0;/Deque is empty/Deque is not emptyendSincludeSincludettincludettincludeusing namespace std;int main()(deque d(5);iota(d.be

45、gin(),d.end(),1)；deque:iterator It=d.begin();while(It!=d.en d()cout *It+；cout endl;/last element of the dequeIt=d.end()-1;cout *It endl;return 0;)OUTPUT:/1 2 3 4 5/5eraseSinclude#include ttinclude Sinclude using namespace std;int main()(deque d(10);deque:iterator I t;for(int i=0;i10;i+)di=i+1;copy(d

46、.begin(),d.end(),ostream _iterator(cout,)；cout endl;It=d.begin()+2;/remove third elementd.erase(It);copy(d.begin(),d.end(),ostream_iterator(c o u t,)；cout endl;It=d.begin0;/remove 2 elements from beginning fo dd.erase(It,It+2);copy(d.begin(),d.end(),ostream_iterator(cout,/z)；cout endl;return 0;OUTPU

47、T:/1 2 3 4/1 2 4 5/4 5 6 75 6 7 8 9 106 7 8 9 108 9 10frontSinclude include ttinclude ttinclude using namespace std;templateclass Memberpublic:Member(T t,D d):name(t),sal(d)void print();private:T name;D s a l;);tem platevoid Member:p rin t()(cout name sal endl;/=int main()(typedef Member M;deque d;d

48、.push_back(M(Linda”,75000);d.push_back(M(z，Robert，/,60000);deque:ite ra to r It=d.begin();cout ”Entire deque:print();cout endl;cout ”Return from front()z，endl;d.front().print();return 0;OUTPUT:/Entire/Linda/Robert/Return/Lindadeque:7500060000from front()75000in sertSinclude Sinclude#include ttinclud

49、e using namespace std;template class Printpublic:void operator()(T&t)(cout t ；);/=int main()(int ary5;fill(ary,ary+5,1);deque d;deque:iterator It;Print print;copy(ary,ary+5,back_inserter(d);cout ”deque d:；for_each(d.begin(),d.end(),print);cout endl;It=d.begin();/insert value at the position Itcout ，

50、zd.insert(It,5):；d.insert(It,5);for_each(d.begin(),d.end(),print);cout endl;/insert range ary+2-ary+5 at the positionIt=d.begin()+5;cout ，zd.insert(It,ary+2,ary+5:；d.insert(It,ary+2,ary+5);for_each(d.begin(),d.end(),print);cout endl;/insert 2 value of 20 at the positionIt=d.end()-2;cout d.insert(It,