Submission #31911

#	Time^UTC-0	Username	Problem	Language	Result	Execution time	Memory
31911	2017-09-14 09:40:24	chonka	Tracks in the Snow (BOI13_tracks)	C++98	100 / 100	1493 ms	104988 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

tracks

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#include<iostream>
#include<stdio.h>
#include<string>
#include<queue>
using namespace std ;
#define MAXN 4007
int n , m ;
string a[ MAXN ] ;
int used[ MAXN ][ MAXN ] ;
int ans = 0 ;
int dx[ 4 ] = { 0 , 0 , 1 , -1 } ;
int dy[ 4 ] = { 1 , -1 , 0 , 0 } ;
void bfs ( ) {
    queue < pair < int , int > > q ;
    queue < pair < int , int > > aux ;
    int i , j ;
    used[ n ][ m ] = 1 ;
    q.push ( make_pair ( n , m ) ) ;
    while ( 1 ) {
        ans ++ ;
        while ( q.empty ( ) == false ) {
            pair < int , int > p = q.front ( ) ;
            q.pop ( ) ;
            int i ;
            for ( i = 0 ; i < 4 ; i ++ ) {
 
 
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Compilation message (stderr)

tracks.cpp: In function 'void bfs()':
tracks.cpp:21:9: warning: unused variable 'i' [-Wunused-variable]
     int i , j ;
         ^
tracks.cpp:21:13: warning: unused variable 'j' [-Wunused-variable]
     int i , j ;
             ^

Subtask 130 / 30

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Subtask 270 / 70

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