Compilare: user.cpp: In function ‘int main()’: user.cpp:46:58: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if (xorsum ^ sg[k][m] ^ sg[n - k - d][m] > 0) ^ user.cpp:49:58: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if (xorsum ^ sg[n][k] ^ sg[n][m - k - d] > 0) ^ user.cpp:51:43: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if (xorsum ^ sg[n - 2][m - 2] > 0) ^ user.cpp:18:35: 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:19:37: 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:33:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:36:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &xx[i], &yy[i]); ^