0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-12-24 03:31:59 +00:00
OI-codes/CodeForces/1604/A/A.cpp

20 lines
304 B
C++
Raw Normal View History

#include <bits/stdc++.h>
using namespace std;
int t, n, a, ans;
int main() {
cin >> t;
while (t--) {
ans = 0;
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a;
ans = max(ans, a - i);
}
cout << ans << endl;
}
return 0;
}