Submission #574964

#	Time	Username	Problem	Language	Result	Execution time	Memory
574964		stevancv	Boxes with souvenirs (IOI15_boxes)	C++14	Compilation error	0 ms	0 KiB

boxes

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 2e5 + 2;
ll delivery(int N, int K, int D, int pos[]) {
    ll n = N; ll k = K; ll d = D;
    vector<ll> a(n + 2);
    for (int i = 1; i <= n; i++) a[i] = pos[i - 1];
    a[n + 1] = d;
    vector<ll> p(n + 2), s(n + 2);
    for (int i = 0; i <= n + 1; i++) {
        p[i] = 2 * a[i];
        s[i] = 2 * (d - a[i]);
    }
    for (int i = k; i <= n + 1; i++) p[i] += p[i - k];
    for (int i = n - k + 1; i >= 0; i--) s[i] += s[i + k];
    ll ans = 1e18;
    for (int l = 1; l <= n; l++) {
        for (int r = l - 1; r <= n; r++) {
            ll kolko = r - l + 1;
            kolko = (kolko + k - 1) / k;
            smin(ans, p[l - 1] + s[r + 1] + kolko * d);
        }
    }
    return ans;
}
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, k, l;
    cin >> n >> k >> l;
    int pos[n];
    for (int i = 0; i < n; i++) cin >> pos[i];
    cout << delivery(n, k, l, pos) << en;
    return 0;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:10:17: warning: declaration of 'N' shadows a global declaration [-Wshadow]
   10 | ll delivery(int N, int K, int D, int pos[]) {
      |             ~~~~^
boxes.cpp:9:11: note: shadowed declaration is here
    9 | const int N = 2e5 + 2;
      |           ^
boxes.cpp:20:18: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   20 |     for (int i = k; i <= n + 1; i++) p[i] += p[i - k];
      |                  ^
boxes.cpp:21:24: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   21 |     for (int i = n - k + 1; i >= 0; i--) s[i] += s[i + k];
      |                  ~~~~~~^~~
/usr/bin/ld: /tmp/ccPV8Sem.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccFr0Zbj.o:boxes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status