Submission #733439

#	Time	Username	Problem	Language	Result	Execution time	Memory
733439		shoryu386	Let's Win the Election (JOI22_ho_t3)	C++17	10 / 100	1507 ms	988740 KiB

Main

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

#define int long long
#define db double

#define MAX 502
db dp[MAX][MAX][MAX];
int n, k;

pair<db, db> info[MAX];

bool cmp(pair<db, db> a, pair<db, db> b){
	if (a.second == -1) a.second = 1000000000;
	if (b.second == -1) b.second = 1000000000;
	
	return a.second < b.second;
	
}

db recur(int idx, int colabCount, int voteCount){
	if (idx == n && voteCount >= k) return 0;
	else if (idx == n) return 1000000000;
	
	if (dp[idx][colabCount][voteCount] != -1) return dp[idx][colabCount][voteCount];
	if (info[idx].second == -1) return dp[idx][colabCount][voteCount] = min(recur(idx+1, colabCount, voteCount), recur(idx+1, colabCount, voteCount+1) + info[idx].first/colabCount);
	return dp[idx][colabCount][voteCount] = min({recur(idx+1, colabCount, voteCount), recur(idx+1, colabCount, voteCount+1) + info[idx].first/colabCount, recur(idx+1, colabCount+1, voteCount+1) + info[idx].second/colabCount});
}

main(){

	cin >> n >> k;
	
	for (int x = 0; x < n; x++) cin >> info[x].first >> info[x].second;
	
	sort(info, info+n, cmp);
	

	
	for (int x = 0; x <= n; x++) for (int y = 0; y <= n+1; y++) for (int z = 0; z <= n; z++) dp[x][y][z] = -1;
	
	cout << std::setprecision(9) << recur(0, 1, 0);
}

Compilation message (stderr)

Main.cpp:30:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   30 | main(){
      | ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 33
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23