Use std::replace to replace elements in vector by value
#include <iostream>
using std::cout;
using std::endl;
#include <algorithm>
#include <vector>
#include <iterator>
int main()
{
int a[ 10 ] = { 10, 2, 10, 4, 16, 6, 14, 8, 12, 10 };
std::ostream_iterator< int > output( cout, " " );
std::vector< int > v1( a, a + 10 ); // copy of a
cout << "Vector v1 before replacing all 10s:\n ";
std::copy( v1.begin(), v1.end(), output );
// replace all 10s in v1 with 100
std::replace( v1.begin(), v1.end(), 10, 100 );
cout << "\nVector v1 after replacing 10s with 100s:\n ";
std::copy( v1.begin(), v1.end(), output );
cout << endl;
return 0;
}
/*
Vector v1 before replacing all 10s:
10 2 10 4 16 6 14 8 12 10
Vector v1 after replacing 10s with 100s:
100 2 100 4 16 6 14 8 12 100
*/
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