Borderou de evaluare (job #24242)

Compilare: user.cpp: In function ‘void solve()’: user.cpp:42:7: warning: unused variable ‘str’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:74:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:75:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘void readNum(int&)’: user.cpp:22:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:28:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]