foo.cc: In function 'int main()':
foo.cc:49:17: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(a[i][j]==1&&a[i][j-1]==0||a[i][j]==1&&a[i][j+1]==0){
       ~~~~~~~~~~^~~~~~~~~~~~~~

自豪的采用jd5进行评测(github.com/masnn/jd5)