Submission #718960

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
718960	2023-04-05T07:50:44 Z	Kalashnikov	Let's Win the Election (JOI22_ho_t3)	C++17	56 / 100	2500 ms	994492 KB

Main

#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 500+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;

int a[N], b[N];

double dp[N][N][N];

void mini(double &a, double b) {
	a = min(a, b);
}

void solve(int tc) {
	int n , k;
	cin >> n >> k;
	vector<pair<int,int>> vec;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i] >> b[i];
		if(b[i] == -1) b[i] = inf;
		vec.push_back({b[i] , a[i]});
	}
	sort(all(vec));
	for(int i = 1; i <= n; i ++) {
		a[i] = vec[i-1].S;
		b[i] = vec[i-1].F;
	}
	for(int i = 0; i <= n; i ++) {
		for(int j = 0; j <= n; j ++) {
			for(int k = 0; k <= n; k ++) {
				dp[i][j][k] = INF;
			}
		}
	}
	for(int i = 0; i <= n; i ++) dp[i][0][0] = 0;
	double ans = INF;
	for(int l = 0; l <= n; l ++) { // в конце сторонников
		for(int i = 0; i < n; i ++) {
			for(int j = 0; j <= i; j ++) {
				mini(dp[i+1][j][l], dp[i][j][l]);
				mini(dp[i+1][j+1][l], dp[i][j][l] + a[i+1]/double(l+1));
				for(int x = 0; x <= min(j, l); x ++) {
					mini(dp[i+1][j][x], dp[i][j][x]);
					mini(dp[i+1][j+1][x], dp[i][j][x] + a[i+1]/double(l+1));
					if(b[i+1] != inf)
						mini(dp[i+1][j+1][x+1], dp[i][j][x] + b[i+1]/double(x+1));
				}
			}
		}
		ans = min(ans, dp[n][k][l]);
	}
	// for(int x = 0; x <= n; x ++) {
		// ans = min(ans, dp[n][k][x]);
	// }
	cout << fixed << setprecision(6) << ans;
}
/*
*/
main() {
    ios;
    int tt = 1 , tc = 0;
    // cin >> tt;
    while(tt --) {
        solve(++tc);
    }
    return 0;
}

Compilation message

Main.cpp:68:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   68 | main() {
      | ^~~~

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Execution timed out	2644 ms	994492 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

Subtask #2
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Execution timed out	2644 ms	994492 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

Subtask #3
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	596 KB	Output is correct
2	Correct	1 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	1 ms	596 KB	Output is correct
6	Correct	1 ms	596 KB	Output is correct
7	Correct	1 ms	596 KB	Output is correct
8	Correct	1 ms	608 KB	Output is correct
9	Correct	1 ms	584 KB	Output is correct
10	Correct	1 ms	596 KB	Output is correct
11	Correct	1 ms	596 KB	Output is correct
12	Correct	1 ms	596 KB	Output is correct
13	Correct	1 ms	596 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	596 KB	Output is correct

Subtask #4
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	596 KB	Output is correct
2	Correct	1 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	1 ms	596 KB	Output is correct
6	Correct	1 ms	596 KB	Output is correct
7	Correct	1 ms	596 KB	Output is correct
8	Correct	1 ms	608 KB	Output is correct
9	Correct	1 ms	584 KB	Output is correct
10	Correct	1 ms	596 KB	Output is correct
11	Correct	1 ms	596 KB	Output is correct
12	Correct	1 ms	596 KB	Output is correct
13	Correct	1 ms	596 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	596 KB	Output is correct
16	Correct	2 ms	2132 KB	Output is correct
17	Correct	1 ms	2132 KB	Output is correct
18	Correct	1 ms	2124 KB	Output is correct
19	Correct	2 ms	2132 KB	Output is correct
20	Correct	2 ms	2132 KB	Output is correct
21	Correct	2 ms	2124 KB	Output is correct
22	Correct	1 ms	2132 KB	Output is correct
23	Correct	1 ms	2132 KB	Output is correct
24	Correct	1 ms	2128 KB	Output is correct
25	Correct	1 ms	2124 KB	Output is correct
26	Correct	1 ms	2132 KB	Output is correct
27	Correct	1 ms	2132 KB	Output is correct
28	Correct	2 ms	2132 KB	Output is correct
29	Correct	2 ms	2132 KB	Output is correct
30	Correct	2 ms	2156 KB	Output is correct
31	Correct	1 ms	2132 KB	Output is correct
32	Correct	1 ms	2132 KB	Output is correct
33	Correct	1 ms	2128 KB	Output is correct
34	Correct	1 ms	2124 KB	Output is correct
35	Correct	1 ms	2132 KB	Output is correct
36	Correct	1 ms	2132 KB	Output is correct
37	Correct	1 ms	2132 KB	Output is correct
38	Correct	1 ms	2120 KB	Output is correct
39	Correct	1 ms	2132 KB	Output is correct
40	Correct	1 ms	2120 KB	Output is correct

Subtask #5
33.0 / 33.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	596 KB	Output is correct
2	Correct	1 ms	596 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	1 ms	596 KB	Output is correct
6	Correct	1 ms	596 KB	Output is correct
7	Correct	1 ms	596 KB	Output is correct
8	Correct	1 ms	608 KB	Output is correct
9	Correct	1 ms	584 KB	Output is correct
10	Correct	1 ms	596 KB	Output is correct
11	Correct	1 ms	596 KB	Output is correct
12	Correct	1 ms	596 KB	Output is correct
13	Correct	1 ms	596 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	596 KB	Output is correct
16	Correct	2 ms	2132 KB	Output is correct
17	Correct	1 ms	2132 KB	Output is correct
18	Correct	1 ms	2124 KB	Output is correct
19	Correct	2 ms	2132 KB	Output is correct
20	Correct	2 ms	2132 KB	Output is correct
21	Correct	2 ms	2124 KB	Output is correct
22	Correct	1 ms	2132 KB	Output is correct
23	Correct	1 ms	2132 KB	Output is correct
24	Correct	1 ms	2128 KB	Output is correct
25	Correct	1 ms	2124 KB	Output is correct
26	Correct	1 ms	2132 KB	Output is correct
27	Correct	1 ms	2132 KB	Output is correct
28	Correct	2 ms	2132 KB	Output is correct
29	Correct	2 ms	2132 KB	Output is correct
30	Correct	2 ms	2156 KB	Output is correct
31	Correct	1 ms	2132 KB	Output is correct
32	Correct	1 ms	2132 KB	Output is correct
33	Correct	1 ms	2128 KB	Output is correct
34	Correct	1 ms	2124 KB	Output is correct
35	Correct	1 ms	2132 KB	Output is correct
36	Correct	1 ms	2132 KB	Output is correct
37	Correct	1 ms	2132 KB	Output is correct
38	Correct	1 ms	2120 KB	Output is correct
39	Correct	1 ms	2132 KB	Output is correct
40	Correct	1 ms	2120 KB	Output is correct
41	Correct	55 ms	41040 KB	Output is correct
42	Correct	53 ms	41044 KB	Output is correct
43	Correct	60 ms	41044 KB	Output is correct
44	Correct	50 ms	41044 KB	Output is correct
45	Correct	54 ms	41040 KB	Output is correct
46	Correct	60 ms	41044 KB	Output is correct
47	Correct	52 ms	41044 KB	Output is correct
48	Correct	45 ms	41048 KB	Output is correct
49	Correct	55 ms	41048 KB	Output is correct
50	Correct	50 ms	41044 KB	Output is correct
51	Correct	55 ms	41044 KB	Output is correct
52	Correct	70 ms	41056 KB	Output is correct
53	Correct	58 ms	41044 KB	Output is correct
54	Correct	68 ms	40996 KB	Output is correct
55	Correct	55 ms	41000 KB	Output is correct
56	Correct	52 ms	41044 KB	Output is correct
57	Correct	53 ms	41036 KB	Output is correct
58	Correct	65 ms	41000 KB	Output is correct
59	Correct	52 ms	41048 KB	Output is correct
60	Correct	71 ms	41048 KB	Output is correct

Subtask #6
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	2609 ms	994432 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Execution timed out	2644 ms	994492 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

Submission #718960

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