Borderou de evaluare (job #387347)

Compilare: user.cpp: In function ‘int main()’: user.cpp:7:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:25: warning: ‘k’ may be used uninitialized in this function [-Wuninitialized] user.cpp:38:25: warning: ‘j’ may be used uninitialized in this function [-Wuninitialized] user.cpp:38:25: warning: ‘i’ may be used uninitialized in this function [-Wuninitialized] user.cpp:13:5: warning: ‘ch3’ may be used uninitialized in this function [-Wuninitialized]