Borderou de evaluare (job #358661)

Compilare: user.cpp: In function ‘int main()’: user.cpp:9:26: warning: unused variable ‘k’ [-Wunused-variable] user.cpp:9:30: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:9:32: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:9:44: warning: unused variable ‘elem’ [-Wunused-variable] user.cpp:7:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:13: warning: ‘ci’ may be used uninitialized in this function [-Wuninitialized]