Compilare: main.cpp: In function 'int main()': main.cpp:15:15: warning: unused variable 'j' [-Wunused-variable] 15 | int n, i, j, k, l, x, y, numar, a, lin, col, poz1, poz2, z; | ^ main.cpp:15:18: warning: unused variable 'k' [-Wunused-variable] 15 | int n, i, j, k, l, x, y, numar, a, lin, col, poz1, poz2, z; | ^ main.cpp:15:21: warning: unused variable 'l' [-Wunused-variable] 15 | int n, i, j, k, l, x, y, numar, a, lin, col, poz1, poz2, z; | ^