답안 #1086903

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1086903	2024-09-11T16:46:08 Z	pokmui9909	Sparklers (JOI17_sparklers)	C++17	50 / 100	20 ms	18268 KB

sparklers

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

ll N, K, T, A[100005];
ll D[1005][1005];

void f(ll s, ll e, ll v){
    if(s >= 2 && D[s - 1][e] == -1){
        if(A[e] - A[s - 1] <= (e - s + 1) * T * 2 * v){
            D[s - 1][e] = 1;
            f(s - 1, e, v);
        } else {
            D[s - 1][e] = 0;
        }
    }
    if(e < N && D[s][e + 1] == -1){
        if(A[e + 1] - A[s] <= (e - s + 1) * T * 2 * v){
            D[s][e + 1] = 1;
            f(s, e + 1, v);
        } else {
            D[s][e + 1] = 0;
        }
    }
}

int main(){
    cin.tie(0) -> sync_with_stdio(0);

    cin >> N >> K >> T;
    for(ll i = 1; i <= N; i++){
        cin >> A[i];
    }
    if(A[N] == 0){
        cout << 0; return 0;
    }
    ll L = 1, R = 1e9;
    while(L <= R){
        ll m = (L + R) / 2;
        fill(D[0], D[1004] + 1005, -1LL);
        D[K][K] = 1;
        f(K, K, m);
        if(D[1][N] == 1) R = m - 1;
        else L = m + 1;
    }
    cout << L;
}

Subtask #1

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	8280 KB	Output is correct
2	Correct	9 ms	8284 KB	Output is correct
3	Correct	8 ms	8280 KB	Output is correct
4	Correct	10 ms	8284 KB	Output is correct
5	Correct	8 ms	8284 KB	Output is correct
6	Correct	8 ms	8284 KB	Output is correct
7	Correct	10 ms	8376 KB	Output is correct
8	Correct	9 ms	8372 KB	Output is correct
9	Correct	10 ms	8280 KB	Output is correct
10	Correct	9 ms	8284 KB	Output is correct
11	Correct	8 ms	8284 KB	Output is correct
12	Correct	10 ms	8372 KB	Output is correct
13	Correct	9 ms	8284 KB	Output is correct
14	Correct	9 ms	8284 KB	Output is correct
15	Correct	9 ms	8280 KB	Output is correct
16	Correct	8 ms	8276 KB	Output is correct
17	Correct	9 ms	8372 KB	Output is correct
18	Correct	8 ms	8368 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	9 ms	8216 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct

Subtask #2

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	8280 KB	Output is correct
2	Correct	9 ms	8284 KB	Output is correct
3	Correct	8 ms	8280 KB	Output is correct
4	Correct	10 ms	8284 KB	Output is correct
5	Correct	8 ms	8284 KB	Output is correct
6	Correct	8 ms	8284 KB	Output is correct
7	Correct	10 ms	8376 KB	Output is correct
8	Correct	9 ms	8372 KB	Output is correct
9	Correct	10 ms	8280 KB	Output is correct
10	Correct	9 ms	8284 KB	Output is correct
11	Correct	8 ms	8284 KB	Output is correct
12	Correct	10 ms	8372 KB	Output is correct
13	Correct	9 ms	8284 KB	Output is correct
14	Correct	9 ms	8284 KB	Output is correct
15	Correct	9 ms	8280 KB	Output is correct
16	Correct	8 ms	8276 KB	Output is correct
17	Correct	9 ms	8372 KB	Output is correct
18	Correct	8 ms	8368 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	9 ms	8216 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	14 ms	8284 KB	Output is correct
23	Correct	11 ms	8284 KB	Output is correct
24	Correct	9 ms	8284 KB	Output is correct
25	Correct	9 ms	8284 KB	Output is correct
26	Correct	12 ms	8284 KB	Output is correct
27	Correct	13 ms	8280 KB	Output is correct
28	Correct	16 ms	8284 KB	Output is correct
29	Correct	15 ms	8436 KB	Output is correct
30	Correct	14 ms	8284 KB	Output is correct
31	Correct	15 ms	8444 KB	Output is correct
32	Correct	17 ms	8284 KB	Output is correct
33	Correct	17 ms	8284 KB	Output is correct
34	Correct	14 ms	8284 KB	Output is correct
35	Correct	20 ms	8436 KB	Output is correct
36	Correct	12 ms	8284 KB	Output is correct
37	Correct	12 ms	8392 KB	Output is correct
38	Correct	16 ms	8444 KB	Output is correct
39	Correct	11 ms	8284 KB	Output is correct
40	Correct	0 ms	348 KB	Output is correct

Subtask #3

0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	8280 KB	Output is correct
2	Correct	9 ms	8284 KB	Output is correct
3	Correct	8 ms	8280 KB	Output is correct
4	Correct	10 ms	8284 KB	Output is correct
5	Correct	8 ms	8284 KB	Output is correct
6	Correct	8 ms	8284 KB	Output is correct
7	Correct	10 ms	8376 KB	Output is correct
8	Correct	9 ms	8372 KB	Output is correct
9	Correct	10 ms	8280 KB	Output is correct
10	Correct	9 ms	8284 KB	Output is correct
11	Correct	8 ms	8284 KB	Output is correct
12	Correct	10 ms	8372 KB	Output is correct
13	Correct	9 ms	8284 KB	Output is correct
14	Correct	9 ms	8284 KB	Output is correct
15	Correct	9 ms	8280 KB	Output is correct
16	Correct	8 ms	8276 KB	Output is correct
17	Correct	9 ms	8372 KB	Output is correct
18	Correct	8 ms	8368 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	9 ms	8216 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	14 ms	8284 KB	Output is correct
23	Correct	11 ms	8284 KB	Output is correct
24	Correct	9 ms	8284 KB	Output is correct
25	Correct	9 ms	8284 KB	Output is correct
26	Correct	12 ms	8284 KB	Output is correct
27	Correct	13 ms	8280 KB	Output is correct
28	Correct	16 ms	8284 KB	Output is correct
29	Correct	15 ms	8436 KB	Output is correct
30	Correct	14 ms	8284 KB	Output is correct
31	Correct	15 ms	8444 KB	Output is correct
32	Correct	17 ms	8284 KB	Output is correct
33	Correct	17 ms	8284 KB	Output is correct
34	Correct	14 ms	8284 KB	Output is correct
35	Correct	20 ms	8436 KB	Output is correct
36	Correct	12 ms	8284 KB	Output is correct
37	Correct	12 ms	8392 KB	Output is correct
38	Correct	16 ms	8444 KB	Output is correct
39	Correct	11 ms	8284 KB	Output is correct
40	Correct	0 ms	348 KB	Output is correct
41	Runtime error	15 ms	18268 KB	Execution killed with signal 11
42	Halted	0 ms	0 KB	-