Submission #18746

#	Time	Username	Problem	Language	Result	Execution time	Memory
18746		gs14004	도장 모으기 (JOI14_stamps)	C++14	85 / 100	48 ms	1840 KiB

stamps

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <algorithm>
#include <string>
#include <functional>
#include <vector>
#include <numeric>
#include <deque>
#include <utility>
#include <bitset>
#include <iostream>
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<int, int> pi;

int n, t, u[3005], v[3005], d[3005], f[3005];
lint cst[3005], pfx[3005];

lint cost(int s, int e){
	lint ret = 3ll * (e - s) * t + u[e] + f[e];
	if(s < e) ret += cst[e-1] - cst[s];
	lint tmp = 2ll * s * t + pfx[s];
	if(s != e) tmp += min(u[s] + v[s], d[s] + f[s]);
	tmp = min(tmp, 1ll * d[s] + v[s]);
	return ret + tmp;
}

lint dp[3005];

int main(){
	cin >> n >> t;
	pfx[0] = 1e18;
	for(int i=1; i<=n; i++){
		cin >> u[i] >> v[i] >> d[i] >> f[i];
		cst[i] = cst[i-1] + min(u[i] + v[i], d[i] + f[i]);
		pfx[i] = min(pfx[i-1], d[i] + v[i] - 2ll * i * t);
	}
	for(int i=1; i<=n; i++){
		dp[i] = dp[i-1] + u[i] + v[i] + t;
		for(int j=0; j<i; j++){
			dp[i] = min(dp[i], dp[j] + t + cost(j+1, i));
		}
	}
	cout << dp[n] + t;
}

• Subtask 1: 10 / 10
• Subtask 2: 75 / 75
• Subtask 3: 0 / 15