Compilare: main.cpp: In function 'int main()': main.cpp:22:25: warning: left operand of comma operator has no effect [-Wunused-value] 22 | for(i = 1, j = 1; i < n, j < n; i ++, j ++) | ~~^~~ main.cpp:24:37: warning: left operand of comma operator has no effect [-Wunused-value] 24 | for(p = i + 1, q = i + 1; p <= n, q <= n; p ++, q ++) | ~~^~~~