/in/foo.cc: In function 'int main()':
/in/foo.cc:50:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    if(to[t1.x][t1.y][i][0]==-1)continue;t2.x=to[t1.x][t1.y][i][0];
    ^~
/in/foo.cc:50:41: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
    if(to[t1.x][t1.y][i][0]==-1)continue;t2.x=to[t1.x][t1.y][i][0];
                                         ^~