oj.uz

Submission #399774

# Submission time Handle Problem Language Result Execution time Memory
399774 2021-05-06T15:14:51 Z my99n Duathlon (APIO18_duathlon) C++14
0 / 100
 1 ms 204 KB 
#include<bits/stdc++.h>
using namespace std;

long long c (long long n) {
  return (n * n + n) >> 1;
}

long long solve (int n) {
  if (n == 3) return 1; 
  return solve(n-1) + c(n-2);
}

int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long n, m; cin >> n >> m;
  if (n != m) cout << 2ll*solve(n) << endl;
  if (n == m) cout << c(n-2) * n << endl;
  return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -