제출 #363598

#제출 시각아이디문제언어결과실행 시간메모리
363598Sparky_09Boxes with souvenirs (IOI15_boxes)C++17
컴파일 에러
0 ms0 KiB
#include "bits/stdc++.h" using namespace std; #define rep(i, a, b) for(int i = a; i < (b); ++i) #define all(x) begin(x), end(x) #define trav(a, x) for(auto& a : x) #define sz(x) (int)(x).size() typedef long long ll; typedef pair<ll, ll> pii; typedef vector<ll> vi; typedef vector<pii> vpi; void usaco(string s){ freopen((s+".in").c_str(), "r", stdin); freopen((s+".out").c_str(), "w", stdout); } ll maxn = 1e7+1000; vector<ll> pre(maxn+2, 0), suf(maxn+2, 0), pos1(maxn+2); int delivery(int n, int k, int l, int pos[]){ for(int i = 0; i < n; i++) pos1[i] = pos[i]; for(int i = 0; i < n; i++){ pre[i] = (i>=k?pre[i-k]+min(l,2*pos[i]):min(l,2*pos[i])); } for(int i = n-1; i >= 0; i--){ suf[i] = (i<=n-1-k?suf[i+k]+min(l,2*(l-pos[i])):min(l,2*(l-pos[i]))); } ll ans = min(pre[0],suf[0]); for(int i = 0; i < n; i++){ ans = min(ans, pre[i] + suf[i+1]); } return ans; } int main() { cin.tie(0)->sync_with_stdio(0); cin.exceptions(cin.failbit); #ifdef LOCAL_DEFINE freopen("input.txt", "r", stdin); #endif }

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'int delivery(int, int, int, int*)':
boxes.cpp:32:9: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   32 |  return ans;
      |         ^~~
boxes.cpp: In function 'void usaco(std::string)':
boxes.cpp:13:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   13 |   freopen((s+".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
boxes.cpp:14:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   14 |   freopen((s+".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/ccRnQB2n.o: In function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'
/tmp/ccD4dbl7.o:boxes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status