Submission #1086549

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086549		Pacybwoah	Boxes with souvenirs (IOI15_boxes)	C++17	50 / 100	2033 ms	25792 KiB

boxes

#include "boxes.h"
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
typedef long long ll;

long long delivery(int N, int K, int L, int p[]) {
    vector<int> vec;
    for(int i = 0; i < N; i++) if(p[i] > 0) vec.push_back(p[i]);
    int n = vec.size();
    if(n == 0) return 0;
    int k = K;
    auto calc = [&](int l, int r){
        if(l > r) return 0;
        return min(min(vec[r] * 2, (L - vec[l]) * 2), L);
    };
    vector<ll> dp(n + 1, 1e18);
    dp[0] = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 0; j < i; j++){
            if(i - j <= k) dp[i] = min(dp[i], dp[j] + calc(j, i - 1));
        }
    }
    return dp[n];
}
// g++ -std=c++17 -o run -Wshadow -Wall -Wextra -fsanitize=undefined -fsanitize=address boxes.cpp grader.cpp

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:11:21: warning: conversion from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   11 |     int n = vec.size();
      |             ~~~~~~~~^~

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