Compilare: main.cpp: In function 'int main()': main.cpp:22:19: warning: unused variable 'k' [-Wunused-variable] int n, m, k, xr, xj, yr, yj, minn=210000000; ^ main.cpp:100:37: warning: 'yy' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<minn<<" "<<xx<<" "<<yy; ^ main.cpp:100:30: warning: 'xx' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<minn<<" "<<xx<<" "<<yy; ^~~