Compilare: main.cpp: In function 'int main()': main.cpp:90:20: warning: unused variable 'a' [-Wunused-variable] 90 | for(int f = 1, a, b ; f <= n * n ; f ++) | ^ main.cpp:90:23: warning: unused variable 'b' [-Wunused-variable] 90 | for(int f = 1, a, b ; f <= n * n ; f ++) | ^ main.cpp:96:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 96 | for(int f = rez.size() - 2 ; f >= 0 ; f --) | ^~~ main.cpp:99:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 99 | cout << 0 ; | ^~~~