Compilare: main.cpp: In function 'int main()': main.cpp:53:20: warning: unused variable 'm' [-Wunused-variable] 53 | int lin, col, n, m, i, c, val, cont, j; | ^ main.cpp:115:43: warning: 'col2' may be used uninitialized in this function [-Wmaybe-uninitialized] 115 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~~ main.cpp:115:38: warning: 'lin2' may be used uninitialized in this function [-Wmaybe-uninitialized] 115 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~ main.cpp:115:27: warning: 'col1' may be used uninitialized in this function [-Wmaybe-uninitialized] 115 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~ main.cpp:115:16: warning: 'lin1' may be used uninitialized in this function [-Wmaybe-uninitialized] 115 | out<<lin1<<" "<<col1<<" "<<lin2<<" "<<col2; | ^~~