Borderou de evaluare (job #468728)

Compilare: user.cpp: In function ‘bool test(int)’: user.cpp:20:7: warning: unused variable ‘i2’ [-Wunused-variable] user.cpp:20:11: warning: unused variable ‘j2’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:30:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:59:11: warning: ‘ans’ may be used uninitialized in this function [-Wuninitialized]