Submission #1032563

#	Time	Username	Problem	Language	Result	Execution time	Memory
1032563		socpite	Boxes with souvenirs (IOI15_boxes)	C++17	0 / 100	38 ms	78712 KiB

boxes

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

const int maxn = 1e7+5;
const long long INF = 1e18;

long long cnt[maxn], ans[maxn], dp[maxn];

long long delivery(int N, int K, int L, int p[]) {
    for(int i = 0; i < N; i++)cnt[p[i]]++;
    N -= cnt[0];
    int crr = 0;
    for(int i = 1; i < L; i++){
        for(int _ = 0; _ < cnt[i]; _++){
            dp[crr++%K] += i + min(i, L - i);
            ans[crr] = dp[(crr-1)%K];
        }
    }
    memset(dp, 0, sizeof(dp));
    crr = 0;
    long long re = INF;
    for(int i = 1; i < L; i++){
        for(int _ = 0; _ < cnt[L-i]; _++){
            dp[crr++%K] += i + min(i, L - i);
            re = min(re, dp[(crr-1)%K] + ans[N - crr]);
        }
    }
    return re;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:12:7: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   12 |     N -= cnt[0];
      |     ~~^~~~~~~~~

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