C + + "vector" usage and examples

1 /***2 * Vector Basics API Review3 * 8 20184  */5 6#include <iostream>7#include <vector>8 using namespacestd;9 Ten //Print VEC vector One voidPrint (vector<int> Vec,intindex) A { -Std::cout <<"VEC"<< Index <<" = "; -      for(inti =0; I < vec.size (); i++) the     { -Std::cout <<Vec[i]; -     } -Std::cout <<Std::endl; + } -  + intMain () A { at     //Vector Initialization -vector<int> vec0 (Ten,1);//10 x 1 -vector<int> Vec1 (Vec0.begin (), Vec0.begin () +2);//assigns the first two values of a vec0 to VEC1 -vector<vector<int>> VEC2 (3, vector<int> (4));//vec2 Two-dimensional vector, containing 3 elements, each containing 4 int-type VEC vectors -  -Print (VEC0,0); inPrint (VEC1,1); -  to     //Vector Basic Operation +     BOOLFlag = Vec0.empty ();//determine if the vec0 is empty -Std::cout <<"flag ="<< Flag <<Std::endl; theVec1.clear ();//Empty VEC1 *Print (VEC1,1); $ Panax Notoginseng     //Vector::insert () -Vec0.insert (Vec0.begin (),2);//Insert 2 to the front of the VEC0 thePrint (VEC0,0);  +Vec0.insert (Vec0.begin (),3,5);//Insert 5 into VEC0 with an index value of 0-2 for each position with a length of 3 APrint (VEC0,0);  theVec0.insert (Vec0.begin (), Vec1.begin (), Vec1.end ());//Insert VEC1 in front of VEC0 +Print (VEC0,0); -  $     //vector::erase () $Vec0.erase (Vec0.begin (), Vec0.begin () +4);//Remove the first 4 bits of VEC0 -Print (VEC0,0); -  the     //Vector::swap () -Vec0.swap (VEC1);//swap the vec0 with the VEC1WuyiPrint (VEC1,1); the  -     //vector<vector<int>> WuVEC0 = vec2[0];//The vector of the No. 0 position of the VEC2 is given to VEC0, because it is the initial value, so it is 4 0 -Print (VEC0,0); About  $     //vector::p ush_back () && vector::p op_back () -Vec1.push_back (2);//Add a 2 at the tail -Print (VEC1,1); -Vec1.pop_back ();//Delete last data APrint (VEC1,1); +  the      while(true) -     { $ GetChar (); the     } the     return 0; the}

C + + "vector" usage and examples