oj.uz

Submission #933867

# Submission time Handle Problem Language Result Execution time Memory
933867 2024-02-26T12:40:53 Z koukirocks Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 1121 ms 8792 KB 
#include <bits/stdc++.h>
#define speed ios_base::sync_with_stdio(0); cin.tie(0)
#define all(x) (x).begin(),(x).end()
 
using namespace std;
typedef long long ll;
typedef double db;
typedef long double ldb;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
 
const ll MAX=5e2+10,P=998244353;
const ll INF=0x3f3f3f3f,oo=0x3f3f3f3f3f3f3f3f;
 
ll n,k;
pair<ldb,ldb> vt[MAX];
ldb dp[MAX][MAX];
ldb suf[MAX][MAX];

int main() {
	speed;
	cin>>n>>k;
	for (int i=1;i<=n;i++) {
		cin>>vt[i].first>>vt[i].second;
		if (vt[i].second==-1) vt[i].second=INF;
	}
	sort(vt+1,vt+n+1,[=](pair<ldb,ldb> a,pair<ldb,ldb> b){
		return a.second<b.second;
	});
	for (int i=1;i<=k;i++) {
		suf[n+1][i]=INF;
	}
	suf[n+1][0]=0;
	for (int i=n;i>=1;i--) {
		suf[i][0]=0;
		for (int j=k;j>=1;j--) {
			suf[i][j]=min(suf[i+1][j-1]+vt[i].first,suf[i+1][j]);
//			cout<<i<<" "<<j<<" "<<suf[i][j]<<" suf\n";
		}
	}
	ldb ans=suf[1][k];
	for (int i=1;i<=k;i++) {
		for (int i=0;i<=n;i++) {
			for (int j=0;j<=n;j++) dp[i][j]=INF;
		}
		dp[0][0]=0;
		for (int j=1;j<=k;j++) {
			for (int x=0;x<=i;x++) {
				dp[j][x]=min(dp[j][x],dp[j-1][x]+vt[j].first/(i+1));
				if (x!=0) dp[j][x]=min(dp[j][x],dp[j-1][x-1]+vt[j].second/x);
//				cout<<i<<" "<<j<<" "<<x<<" "<<dp[j-1][x]+vt[j].first/(i+1)<<" "<<dp[j-1][x-1]+vt[j].second/x<<"\n";
				if (x==i) {
					ans=min(ans,dp[j][x]+suf[j+1][k-j]/(i+1));
//					cout<<i<<" "<<j<<" "<<x<<" "<<dp[j][x]<<" "<<suf[j+1][k-j]/(i+1)<<"\n";
				}
			}
		}
	}
	cout<<fixed<<setprecision(20)<<ans<<"\n";
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2536 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2464 KB Output is correct
5 Correct 53 ms 8284 KB Output is correct
6 Correct 139 ms 8440 KB Output is correct
7 Correct 323 ms 8540 KB Output is correct
8 Correct 615 ms 8540 KB Output is correct
9 Correct 1065 ms 8540 KB Output is correct
10 Correct 558 ms 8540 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2536 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2464 KB Output is correct
5 Correct 53 ms 8284 KB Output is correct
6 Correct 139 ms 8440 KB Output is correct
7 Correct 323 ms 8540 KB Output is correct
8 Correct 615 ms 8540 KB Output is correct
9 Correct 1065 ms 8540 KB Output is correct
10 Correct 558 ms 8540 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 168 ms 8440 KB Output is correct
13 Correct 178 ms 8444 KB Output is correct
14 Correct 168 ms 8284 KB Output is correct
15 Correct 552 ms 8540 KB Output is correct
16 Correct 553 ms 8784 KB Output is correct
17 Correct 548 ms 8536 KB Output is correct
18 Correct 1098 ms 8540 KB Output is correct
19 Correct 1070 ms 8536 KB Output is correct
20 Correct 1085 ms 8540 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 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 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 1 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 1 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 1 ms 2396 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 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 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 1 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 1 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 1 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 2392 KB Output is correct
22 Correct 1 ms 2508 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 2508 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 2396 KB Output is correct
31 Correct 1 ms 2396 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 2396 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2516 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 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 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 1 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 1 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 1 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 2392 KB Output is correct
22 Correct 1 ms 2508 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 2508 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 2396 KB Output is correct
31 Correct 1 ms 2396 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 2396 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2516 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 2 ms 6492 KB Output is correct
42 Correct 2 ms 6488 KB Output is correct
43 Correct 3 ms 6488 KB Output is correct
44 Correct 3 ms 6720 KB Output is correct
45 Correct 4 ms 6724 KB Output is correct
46 Correct 4 ms 6600 KB Output is correct
47 Correct 6 ms 6744 KB Output is correct
48 Correct 5 ms 6488 KB Output is correct
49 Correct 7 ms 6492 KB Output is correct
50 Correct 7 ms 6492 KB Output is correct
51 Correct 10 ms 6728 KB Output is correct
52 Correct 10 ms 6492 KB Output is correct
53 Correct 5 ms 6492 KB Output is correct
54 Correct 5 ms 6488 KB Output is correct
55 Correct 5 ms 6724 KB Output is correct
56 Correct 5 ms 6492 KB Output is correct
57 Correct 6 ms 6492 KB Output is correct
58 Correct 5 ms 6492 KB Output is correct
59 Correct 6 ms 6492 KB Output is correct
60 Correct 5 ms 6492 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1121 ms 8540 KB Output is correct
2 Correct 1074 ms 8540 KB Output is correct
3 Correct 1068 ms 8788 KB Output is correct
4 Correct 1081 ms 8536 KB Output is correct
5 Correct 1073 ms 8540 KB Output is correct
6 Correct 1093 ms 8792 KB Output is correct
7 Correct 1100 ms 8536 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2536 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2464 KB Output is correct
5 Correct 53 ms 8284 KB Output is correct
6 Correct 139 ms 8440 KB Output is correct
7 Correct 323 ms 8540 KB Output is correct
8 Correct 615 ms 8540 KB Output is correct
9 Correct 1065 ms 8540 KB Output is correct
10 Correct 558 ms 8540 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 168 ms 8440 KB Output is correct
13 Correct 178 ms 8444 KB Output is correct
14 Correct 168 ms 8284 KB Output is correct
15 Correct 552 ms 8540 KB Output is correct
16 Correct 553 ms 8784 KB Output is correct
17 Correct 548 ms 8536 KB Output is correct
18 Correct 1098 ms 8540 KB Output is correct
19 Correct 1070 ms 8536 KB Output is correct
20 Correct 1085 ms 8540 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 0 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 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 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 2392 KB Output is correct
42 Correct 1 ms 2508 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2508 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 1 ms 2396 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2392 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2516 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 2 ms 6492 KB Output is correct
62 Correct 2 ms 6488 KB Output is correct
63 Correct 3 ms 6488 KB Output is correct
64 Correct 3 ms 6720 KB Output is correct
65 Correct 4 ms 6724 KB Output is correct
66 Correct 4 ms 6600 KB Output is correct
67 Correct 6 ms 6744 KB Output is correct
68 Correct 5 ms 6488 KB Output is correct
69 Correct 7 ms 6492 KB Output is correct
70 Correct 7 ms 6492 KB Output is correct
71 Correct 10 ms 6728 KB Output is correct
72 Correct 10 ms 6492 KB Output is correct
73 Correct 5 ms 6492 KB Output is correct
74 Correct 5 ms 6488 KB Output is correct
75 Correct 5 ms 6724 KB Output is correct
76 Correct 5 ms 6492 KB Output is correct
77 Correct 6 ms 6492 KB Output is correct
78 Correct 5 ms 6492 KB Output is correct
79 Correct 6 ms 6492 KB Output is correct
80 Correct 5 ms 6492 KB Output is correct
81 Correct 1121 ms 8540 KB Output is correct
82 Correct 1074 ms 8540 KB Output is correct
83 Correct 1068 ms 8788 KB Output is correct
84 Correct 1081 ms 8536 KB Output is correct
85 Correct 1073 ms 8540 KB Output is correct
86 Correct 1093 ms 8792 KB Output is correct
87 Correct 1100 ms 8536 KB Output is correct
88 Correct 56 ms 8284 KB Output is correct
89 Correct 55 ms 8440 KB Output is correct
90 Correct 136 ms 8280 KB Output is correct
91 Correct 137 ms 8444 KB Output is correct
92 Correct 328 ms 8540 KB Output is correct
93 Correct 326 ms 8540 KB Output is correct
94 Correct 620 ms 8536 KB Output is correct
95 Correct 619 ms 8536 KB Output is correct
96 Correct 871 ms 8540 KB Output is correct
97 Correct 872 ms 8548 KB Output is correct
98 Correct 552 ms 8536 KB Output is correct
99 Correct 549 ms 8540 KB Output is correct
100 Correct 548 ms 8536 KB Output is correct
101 Correct 554 ms 8784 KB Output is correct
102 Correct 555 ms 8540 KB Output is correct
103 Correct 549 ms 8540 KB Output is correct
104 Correct 548 ms 8540 KB Output is correct
105 Correct 547 ms 8540 KB Output is correct