Compilare: main.cpp: In function 'int main()': main.cpp:51:20: warning: unused variable 'm' [-Wunused-variable] 51 | int lin, col, n, m, i, c, val, cont, j; | ^ main.cpp:111:43: warning: 'col2' may be used uninitialized in this function [-Wmaybe-uninitialized] 111 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~~ main.cpp:111:38: warning: 'lin2' may be used uninitialized in this function [-Wmaybe-uninitialized] 111 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~ main.cpp:111:27: warning: 'col1' may be used uninitialized in this function [-Wmaybe-uninitialized] 111 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~ main.cpp:111:16: warning: 'lin1' may be used uninitialized in this function [-Wmaybe-uninitialized] 111 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~