제출 #842508

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
842508	2023-09-03 01:46:05	saturina	Tracks in the Snow (BOI13_tracks)	C++14	100 / 100	548 ms	241232 KiB

tracks

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//made by Nguyễn Hồng Nam
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
const ll mod = 1e9 + 7,inf = 1e18,mxn = 4005;
#define pll pair<ll,ll>
#define fi first
#define se second
deque<pll> q;
ll d[mxn][mxn],h,w,row[4] = {-1,0,0,1},col[4] = {0,-1,1,0},ans = 1;
string s[mxn];
void maxz(ll &a,ll b)
{
    if(a < b) a= b;
}
bool check(ll i,ll j)
{
    if(i >= 0 && i < h && j >= 0 && j < w && s[i][j] != '.') return true;
    return false;
}
void bfs01()
{
    d[0][0] = 1;
    q.push_back({0,0});
    while(!q.empty())
    {
        pll mx = q.front();
        maxz(ans,d[mx.fi][mx.se]);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

tracks.cpp: In function 'int main()':
tracks.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |         freopen(taskname".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
tracks.cpp:57:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |         freopen(taskname".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70