////////////////////////////////////////
// 2018/04/23 12:09:34
// deque-at
#include <iostream>
#include <deque>
using namespace std;
int main(){
deque<int> d(3, 0);
d[0] = 100;
d.at(1) = 200;
for (int i = 0; i < 3; i++){
cout << d.at(i) << " ";
}
cout << endl;
return 0;
}
/*
OUTPUT:
100 200 0
*/