Compilare: main.cpp: In function 'int main()': main.cpp:13:33: warning: unused variable 'valMax' [-Wunused-variable] int n, m, k, x, y, MAX = 0, valMax = 0; ^~~~~~ main.cpp:40:40: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] out << MAX << '\n' << x << " " << y; ^ main.cpp:40:32: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] out << MAX << '\n' << x << " " << y; ^~~