oj.uz

Submission #770380

# Submission time Handle Problem Language Result Execution time Memory
770380 2023-07-01T06:28:26 Z Trisanu_Das Let's Win the Election (JOI22_ho_t3) C++17
0 / 100
 174 ms 2264 KB 
#include <bits/stdc++.h>
using namespace std;
#define b first
#define a second
 
int main(){
  ios_base::sync_with_stdio(false); cin.tie(NULL);
  int n, k; cin >> n >> k;
  pair<int, int> st[n];
  for(int i = 0; i < n; i++){
    cin >> st[i].a >> st[i].b;
    if(st[i].b == -1) st[i].b = 1'000'000'000;
  }
  sort(st, st + n);
  double ans = INT_MAX;
  for(int x = 0; x < k; x++){
    double dp[n + 1][k - x + 1]; memset(dp, INT_MAX, sizeof(dp));
    dp[0][0] = 0;
    for (int i = 0; i < n; i++)
			for (int j = 0; j < k - x + 1; j++) {
				if (j < k - x) dp[i + 1][j + 1] = min(dp[i + 1][j + 1], dp[i][j] + (double) st[i].a / (x + 1));
				dp[i + 1][j] = min(dp[i + 1][j], dp[i][j] + (i - j < x ? (double) st[i].b / (i - j + 1) : .0));
			}
		ans = min(ans, dp[n][k - x]);
  }
  cout << fixed << setprecision(9) << ans << '\n';
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 174 ms 2264 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -