제출 #67039

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
67039	2018-08-13 08:54:44	RezwanArefin01	Tracks in the Snow (BOI13_tracks)	C++17	100 / 100	958 ms	297244 KiB

tracks

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///usr/bin/g++ -O2 $0 -o ${0%.cpp} && echo "----------" && ./${0%.cpp}; exit;
#include <bits/stdc++.h>
using namespace std;
typedef long long ll; 
typedef pair<int, int> ii; 
const int N = 4010; 
char g[N][N]; 
int dx[] = {0, 0, 1, -1}; 
int dy[] = {1, -1, 0, 0}; 
int d[N][N], n, m; 
int main() {
    scanf("%d %d", &n, &m);
    for(int i = 0; i < n; i++) 
        scanf(" %s", g[i]); 
    deque<ii> q; 
    memset(d, 63, sizeof d); 
    q.push_back({0, 0}); 
    d[0][0] = 1 ;
    while(!q.empty()) {
        ii u = q.front(); q.pop_front(); 
        int x = u.first, y = u.second;
        for(int i = 0; i < 4; i++) {
            int xx = x + dx[i], yy = y + dy[i]; 
            if(xx >= 0 && xx < n && yy >= 0 && yy < m && g[xx][yy] != '.') {
                int c = g[x][y] != g[xx][yy];
 
 
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컴파일 시 표준 에러 (stderr) 메시지

tracks.cpp: In function 'int main()':
tracks.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
tracks.cpp:18:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %s", g[i]); 
         ~~~~~^~~~~~~~~~~~~

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