제출 #778078

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
778078		Jarif_Rahman	선물상자 (IOI15_boxes)	C++17	50 / 100	2060 ms	278436 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
const int K = 1e7;

ll S[K];
vector<ll> sth[K];

ll delivery(int n, int k, int L, int P[]){
    vector<ll> A(n+1), B(n+1);
    A[0] = 0, B[n] = 0;

    fill(S, S+k, 0);
    for(int i = 1; i <= n; i++){
        S[i%k]+=2*P[i-1];
        A[i] = S[i%k];
    }
    fill(S, S+k, 0);
    for(int i = n-1; i >= 0; i--){
        S[(n-i)%k]+=2*(L-P[i]);
        B[i] = S[(n-i)%k];
    }

    vector<ll> C(n+1);
    C[n] = 0;
    for(int i = n-1; i >= 0; i--){
        C[i] = ll((n-i+k-1)/k)*L;
        sth[i%k].pb(B[i]);
        for(int j = 0; j < sth[i%k].size(); j++)
            C[i] = min(C[i], *(sth[i%k].rbegin()+j)+ll(L)*j);
    }

    ll ans = 1e18;
    for(int i = 0; i <= n; i++) ans = min(ans, A[i]+C[i]);
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:34:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for(int j = 0; j < sth[i%k].size(); j++)
      |                        ~~^~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30