Compilare: user.cpp: In function ‘int main()’: user.cpp:71:10: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if (s^a[i] < a[i]) ans += b[i][s^a[i]]; ^ user.cpp:11:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("joc2.in", "r", stdin); ^ user.cpp:12:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("joc2.out", "w", stdout); ^ user.cpp:47:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &n); ^ user.cpp:51:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &j, &k); ^ user.cpp:55:36: warning: iteration 40u invokes undefined behavior [-Waggressive-loop-optimizations] b[i][p] = how_many[j][k][p]; ^ user.cpp:54:5: note: containing loop for (int p=0; p<=100; p++) ^