#include <iostream> // cout #include <algorithm> // includes, sort using namespace std; bool myfunction (int i, int j) { return i<j; } int main () { int container[] = {5,10,15,20,25,30,35,40,45,50}; int continent[] = {40,30,20,10}; sort (container,container+10); sort (continent,continent+4); // using default comparison: if ( includes(container,container+10,continent,continent+4) ) cout << "container includes continent! "; // using myfunction as comp: if ( includes(container,container+10,continent,continent+4, myfunction) ) cout << "container includes continent! "; return 0; }