Compilare: main.cpp: In function 'long long int la_put(long long int, long long int)': main.cpp:28:23: warning: unused variable 'y2' [-Wunused-variable] ll put = x , s = 1,y2 = y; ^~ main.cpp: In function 'long long int combinations(std::vector<long long int>, long long int)': main.cpp:48:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (i = 1; i <= k; i++) cout << rez[i] << " "; cout << "\n"; ^~~ main.cpp:48:52: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for (i = 1; i <= k; i++) cout << rez[i] << " "; cout << "\n"; ^~~~ main.cpp: In function 'void out_comp(std::vector<long long int>&, long long int)': main.cpp:68:7: warning: unused variable 'i' [-Wunused-variable] ll i, p = ( ( f % 2 ) == 0 ) ? -1 : 1; ^ main.cpp: In function 'int main()': main.cpp:98:15: warning: iteration 48 invokes undefined behavior [-Waggressive-loop-optimizations] fact[i] = 1LL * fact[i - 1] * i % P; ^ main.cpp:97:18: note: within this loop for (i = 2; i <= 50; i++) ~~^~~~~