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Submission #609462

# Submission time Handle Problem Language Result Execution time Memory
609462 2022-07-27T16:01:15 Z Vanilla Popeala (CEOI16_popeala) C++17
26 / 100
 2000 ms 115948 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxt = 2e4 + 2;
const int maxn = 51;
int dp[maxt][maxn]; // dp[i][j] -> minimum score divinding first i tests in j subtasks
int a[maxt];
int pref[maxn][maxt];
int sum[maxn];
int prec[maxt][maxt];
string s[maxn];

int main() {
    int n,t,mk;
    cin >> n >> t >> mk;
    for (int i = 0; i < maxt; i++) for (int j = 0; j < maxn; j++) dp[i][j] = 2e9;
    for (int i = 1; i <= t; i++){
        cin >> a[i];
        sum[i] = sum[i-1] + a[i];
    }
    for (int i = 1; i <= n; i++){
        cin >> s[i];
        for (int j = 1; j <= t; j++){
            pref[i][j] = pref[i][j-1] + (s[i][j-1] - '0');
        }
    }
    for (int i = 1; i <= t; i++){
        dp[i][1] = 0;
        for (int j = 1; j <= n; j++){
            if (pref[j][i] == i) dp[i][1]+=sum[i];
        }
    }
    for (int i = 1; i <= t; i++){
        for (int j = 1; j < i; j++){
            for (int l = 1; l <= n; l++){
                if (pref[l][i] - pref[l][j] == i - j) prec[i][j]+=sum[i] - sum[j];
            }
        }
    }
    for (int k = 2; k <= mk; k++){
        for (int i = 1; i <= t; i++){
            for (int j = 1; j < i; j++){
                dp[i][k] = min(dp[i][k], prec[i][j] + dp[j][k-1]);
            }
        }
    }
    // for (int i = 1; i <= mk; i++){
    //     for (int j = 1; j <= t; j++){
    //         cout << dp[j][i] << " ";
    //     }
    //     cout << "\n";
    // }
    for (int i = 1; i <= mk; i++){
        cout << dp[t][i] << "\n";
    }
    
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4308 KB Output is correct
2 Correct 4 ms 4532 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 7196 KB Output is correct
2 Correct 23 ms 7176 KB Output is correct
3 Correct 22 ms 7100 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 293 ms 17100 KB Output is correct
2 Correct 569 ms 27316 KB Output is correct
3 Correct 985 ms 47172 KB Output is correct

Subtask #4
0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4308 KB Output is correct
2 Correct 4 ms 4532 KB Output is correct
3 Correct 24 ms 7196 KB Output is correct
4 Correct 23 ms 7176 KB Output is correct
5 Correct 22 ms 7100 KB Output is correct
6 Correct 293 ms 17100 KB Output is correct
7 Correct 569 ms 27316 KB Output is correct
8 Correct 985 ms 47172 KB Output is correct
9 Execution timed out 2061 ms 115948 KB Time limit exceeded
10 Halted 0 ms 0 KB -