Borderou de evaluare (job #717088)

Compilare: main.cpp: In function 'int main()': main.cpp:170:9: warning: unused variable 'sum' [-Wunused-variable] 170 | int sum; | ^~~ main.cpp:166:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 166 | freopen("sumuq.out","w",stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:13:30: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 13 | fread(buff, 1, 4096, fin); | ~~~~~^~~~~~~~~~~~~~~~~~~~