제출 #933795

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
933795		raul2008487	선물상자 (IOI15_boxes)	C++17	10 / 100	1 ms	348 KiB

boxes

#include <bits/stdc++.h>
#include "boxes.h"
#define ll int
#define in insert
#define pb push_back
#define vl vector<ll>
#define fi first
#define se second
#define all(v) v.begin(), v.end()
#define endl "\n"
using namespace std;
const ll inf = 100000000000;
long long delivery(int N, int K, int L, int p[]) {
    ll n = N, k = K, ans = inf, i, j;
    vl dpp(n + 2), dps(n + 2);
    dpp[0] = dps[n + 1] = 0;
    for(i = 1; i <= n; i++){
        ll pr = max(i - k,  0);
        dpp[i] = dpp[pr] + p[i - 1] + min(L - p[i - 1], p[i - 1]);
    }
    for(i = n; i > 0; i--){
        ll nxt = min(i + k, n + 1);
        dps[i] = dps[nxt] + (L - p[i - 1]) + min(L - p[i - 1], p[i - 1]);
    }
    for(i = 0; i <= n; i++){
        ans = min(ans, (dpp[i] + dps[i + 1]));
    }
    return ans;
}
/*int main(){
    ll n = 3, k = 2, l = 8;
    ll p[3] = {1, 2, 5};
    cout << delivery(n, k, l, p) << endl;
}*/

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp:12:16: warning: overflow in conversion from 'long int' to 'int' changes value from '100000000000' to '1215752192' [-Woverflow]
   12 | const ll inf = 100000000000;
      |                ^~~~~~~~~~~~
boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:14:36: warning: unused variable 'j' [-Wunused-variable]
   14 |     ll n = N, k = K, ans = inf, i, j;
      |                                    ^

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