Compilare: main.cpp: In function 'int main()': main.cpp:9:19: warning: unused variable 'kl' [-Wunused-variable] int n, m, i, j, kl, kc, s = 0, smax = 0; ^~ main.cpp:9:23: warning: unused variable 'kc' [-Wunused-variable] int n, m, i, j, kl, kc, s = 0, smax = 0; ^~ main.cpp:9:27: warning: unused variable 's' [-Wunused-variable] int n, m, i, j, kl, kc, s = 0, smax = 0; ^