今天是練習cpe的The Hotel with Infinite Rooms題目
#include <bits/stdc++.h>
using namespace std;
int main()
{
long long S ,D ,count;
while(cin >> S >> D)
{
count = S;
D-=count;
while(D > 0)
{
count++ ;
D-=count;
}
cout << count << endl;
}
}
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