답안 #888239

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
888239	2023-12-16T15:34:10 Z	salmon	Let's Win the Election (JOI22_ho_t3)	C++14	56 / 100	333 ms	17232 KB

Main

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

#define foreach(a,b,i) for(type(a) i = a; i <= b; i++)
#define type(x) __typeof(x)
#define pb(x) push_back(x)
#define mp(x,y) make_pair(x,y)

int N,K;
vector<pair<long double,int>> v;
int A[510];
long double B[510];
long double pre[510][510];
const long double inf = 1e20;
long double memo[510][510];

int main(){
    scanf(" %d",&N);
    scanf(" %d",&K);

    for(int i = 1; i <= N; i++){
        scanf(" %d",&A[i]);
        int h;
        scanf(" %d",&h);
        if(h == -1) B[i] = inf;
        else B[i] = h;
        v.pb(mp(B[i],i));
    }

    v.pb(mp(-1,-1));

    sort(v.begin(),v.end());

    foreach(0,N - 1,i){
        pre[i][i] = 0;
        foreach(i + 1, N, j){
            pre[j][i] = pre[j - 1][i] + B[v[j].second] / (long double) (j - i);
        }
    }

    long double big = inf;

    foreach(0,K,i){
        foreach(0,K,k){
            memo[0][k] = inf;
        }

        memo[0][0] = pre[i][0] - pre[0][0];

        //printf("%Lf\n",memo[0][0]);

        foreach(1,N, j){
            foreach(0, K, k){
                memo[j][k] = inf;
                if(k == 0){
                    memo[j][k] = memo[j - 1][k];
                }
                else{
                    if(j <= i + k - 1){
                        memo[j][k] = min(memo[j - 1][k], memo[j - 1][k - 1] + A[v[j].second]/(long double)(i+1) + pre[i + k][k] - pre[j][k]  - (pre[i + k - 1][k - 1] - pre[j - 1][k - 1]) );
                    }
                    else{
                        memo[j][k] = min(memo[j - 1][k], memo[j - 1][k - 1] + A[v[j].second]/(long double)(i+1));
                    }
                }
                //printf("%Lf %d %d\n",memo[j][k],j,k);
            }
        }

        //printf("\n%Lf %d\n\n",memo[N][K - i],i);
        big = min(big,memo[N][K - i]);
    }

    printf("%Lf",big);


}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     scanf(" %d",&N);
      |     ~~~~~^~~~~~~~~~
Main.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     scanf(" %d",&K);
      |     ~~~~~^~~~~~~~~~
Main.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         scanf(" %d",&A[i]);
      |         ~~~~~^~~~~~~~~~~~~
Main.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf(" %d",&h);
      |         ~~~~~^~~~~~~~~~

Subtask #1
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	13 ms	8284 KB	Output is correct
6	Correct	76 ms	8284 KB	Output is correct
7	Correct	333 ms	8536 KB	Output is correct
8	Runtime error	284 ms	17232 KB	Execution killed with signal 11
9	Halted	0 ms	0 KB	-

Subtask #2
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	13 ms	8284 KB	Output is correct
6	Correct	76 ms	8284 KB	Output is correct
7	Correct	333 ms	8536 KB	Output is correct
8	Runtime error	284 ms	17232 KB	Execution killed with signal 11
9	Halted	0 ms	0 KB	-

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2392 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2392 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2396 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2396 KB	Output is correct
30	Correct	1 ms	2648 KB	Output is correct
31	Correct	1 ms	2392 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2392 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	0 ms	2396 KB	Output is correct
37	Correct	0 ms	2396 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2396 KB	Output is correct
40	Correct	1 ms	2396 KB	Output is correct

Subtask #5
33.0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2392 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2396 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2396 KB	Output is correct
30	Correct	1 ms	2648 KB	Output is correct
31	Correct	1 ms	2392 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2392 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	0 ms	2396 KB	Output is correct
37	Correct	0 ms	2396 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2396 KB	Output is correct
40	Correct	1 ms	2396 KB	Output is correct
41	Correct	1 ms	6492 KB	Output is correct
42	Correct	1 ms	6488 KB	Output is correct
43	Correct	2 ms	6492 KB	Output is correct
44	Correct	2 ms	6492 KB	Output is correct
45	Correct	4 ms	6492 KB	Output is correct
46	Correct	4 ms	6696 KB	Output is correct
47	Correct	6 ms	6492 KB	Output is correct
48	Correct	6 ms	6488 KB	Output is correct
49	Correct	9 ms	6492 KB	Output is correct
50	Correct	11 ms	6488 KB	Output is correct
51	Correct	13 ms	6492 KB	Output is correct
52	Correct	13 ms	6492 KB	Output is correct
53	Correct	6 ms	6492 KB	Output is correct
54	Correct	6 ms	6700 KB	Output is correct
55	Correct	6 ms	6492 KB	Output is correct
56	Correct	6 ms	6692 KB	Output is correct
57	Correct	6 ms	6692 KB	Output is correct
58	Correct	6 ms	6492 KB	Output is correct
59	Correct	6 ms	6492 KB	Output is correct
60	Correct	6 ms	6492 KB	Output is correct

Subtask #6
0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	43 ms	16992 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	13 ms	8284 KB	Output is correct
6	Correct	76 ms	8284 KB	Output is correct
7	Correct	333 ms	8536 KB	Output is correct
8	Runtime error	284 ms	17232 KB	Execution killed with signal 11
9	Halted	0 ms	0 KB	-

답안 #888239

Compilation message

Subtask #1 0 / 5.0

Subtask #2 0 / 5.0

Subtask #3 11.0 / 11.0

Subtask #4 12.0 / 12.0

Subtask #5 33.0 / 33.0

Subtask #6 0 / 11.0

Subtask #7 0 / 23.0

Subtask #1
0 / 5.0

Subtask #2
0 / 5.0

Subtask #3
11.0 / 11.0

Subtask #4
12.0 / 12.0

Subtask #5
33.0 / 33.0

Subtask #6
0 / 11.0

Subtask #7
0 / 23.0