Compilare: main.cpp: In function 'int main()': main.cpp:35:11: warning: variable 'fin' set but not used [-Wunused-but-set-variable] FILE *fin=freopen("avarcolaci.in","rt",stdin); ^~~ main.cpp:36:11: warning: unused variable 'fout' [-Wunused-variable] FILE *fout=freopen("avarcolaci.out","wt",stdout); ^~~~ main.cpp:38:31: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, DIM, 1, stdin); ^ main.cpp:62:31: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, DIM, 1, stdin); ^ main.cpp: In function 'int read()': main.cpp:18:39: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, DIM, 1, stdin); ^ main.cpp:26:39: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, DIM, 1, stdin); ^