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답안 #538607

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
538607 2022-03-17T08:23:06 Z alextodoran 조교 (CEOI16_popeala) C++17
26 / 100
 2000 ms 66904 KB 
/**
 ____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|

**/

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int T_MAX = 20000;
const int N_MAX = 50;
const int S_MAX = 50;
const int BITS = 15;

int T, N, S;
int points[T_MAX + 2];
bool solved[N_MAX + 2][T_MAX + 2];

int pref[T_MAX + 2];
int streak[T_MAX + 2][N_MAX + 2];

int minSum[S_MAX + 2][T_MAX + 2];

int rmin[N_MAX + 2][T_MAX + 2][BITS];
void build (int k, int arr[]) {
    for (int t = 0; t <= T; t++) {
        rmin[k][t][0] = arr[t];
    }
    for (int b = 1; b < BITS; b++) {
        for (int t = 0; t + (1 << b) - 1 <= T; t++) {
            rmin[k][t][b] = min(rmin[k][t][b - 1], rmin[k][t + (1 << (b - 1))][b - 1]);
        }
    }
}
int query (int k, int l, int r) {
    int b = (int) log2(r - l + 1);
    return min(rmin[k][l][b], rmin[k][r - (1 << b) + 1][b]);
}

int arr[T_MAX + 2];

int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    cin >> N >> T >> S;
    for (int t = 1; t <= T; t++) {
        cin >> points[t];
        pref[t] = pref[t - 1] + points[t];
    }
    for (int i = 1; i <= N; i++) {
        string str;
        cin >> str;
        for (int t = 1; t <= T; t++) {
            solved[i][t] = (str[t - 1] == '1');
        }
    }
    for (int t = 1; t <= T; t++) {
        for (int i = 1; i <= N; i++) {
            streak[t][i] = (solved[i][t] == true ? streak[t - 1][i] + 1 : 0);
        }
    }
    for (int t = 1; t <= T; t++) {
        for (int i = 1; i <= N; i++) {
            streak[t][i] = t - streak[t][i] + 1;
        }
        streak[t][0] = 1;
        streak[t][N + 1] = T + 1;
        sort(streak[t] + 0, streak[t] + N + 1);
    }

    for (int t = 1; t <= T; t++) {
        minSum[0][t] = INT_MAX;
    }
    for (int s = 1; s <= S; s++) {
        for (int k = 0; k <= N; k++) {
            for (int t = 0; t <= T; t++) {
                if (minSum[s - 1][t] < INT_MAX) {
                    arr[t] = minSum[s - 1][t] - pref[t] * k;
                } else {
                    arr[t] = INT_MAX;
                }
            }
            build(k, arr);
        }
        minSum[s][0] = INT_MAX;
        for (int t = 1; t <= T; t++) {
            minSum[s][t] = INT_MAX;
            for (int k = 0; k <= N; k++) {
                int l = streak[t][k], r = min(streak[t][k + 1] - 1, t);
                if (l <= r) {
                    int sum = query(k, l - 1, r - 1);
                    if (sum < INT_MAX) {
                        minSum[s][t] = min(minSum[s][t], sum + pref[t] * k);
                    }
                }
            }
        }
        cout << minSum[s][T] << "\n";
    }

    return 0;
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 852 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 2848 KB Output is correct
2 Correct 28 ms 2784 KB Output is correct
3 Correct 31 ms 2888 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 165 ms 8524 KB Output is correct
2 Correct 313 ms 11428 KB Output is correct
3 Correct 405 ms 14908 KB Output is correct

Subtask #4
0 / 74.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 852 KB Output is correct
3 Correct 36 ms 2848 KB Output is correct
4 Correct 28 ms 2784 KB Output is correct
5 Correct 31 ms 2888 KB Output is correct
6 Correct 165 ms 8524 KB Output is correct
7 Correct 313 ms 11428 KB Output is correct
8 Correct 405 ms 14908 KB Output is correct
9 Correct 639 ms 23656 KB Output is correct
10 Correct 903 ms 30536 KB Output is correct
11 Execution timed out 2078 ms 66904 KB Time limit exceeded
12 Halted 0 ms 0 KB -