Compilare: main.cpp: In function 'int main()': main.cpp:26:19: warning: unused variable 'k' [-Wunused-variable] int n, m, k, xr, xj, yr, yj, minn=210000000; ^ main.cpp:103:37: warning: 'yy' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<minn<<" "<<xx<<" "<<yy; ^ main.cpp:103:30: warning: 'xx' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<minn<<" "<<xx<<" "<<yy; ^~~ main.cpp:76:68: warning: 'yj' may be used uninitialized in this function [-Wmaybe-uninitialized] jj[x][y] = jj[pos.first][pos.second] + 1; ~~~~~~~~~~~~~~~~~~~~~~~~^ main.cpp:76:68: warning: 'xj' may be used uninitialized in this function [-Wmaybe-uninitialized]