Compilare: main.cpp: In function 'int main()': main.cpp:38:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (st.size()>=l) { ~~~~~~~~~^~~ main.cpp:44:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (dr.size()>u) { ~~~~~~~~~^~ main.cpp: In function 'int numar()': main.cpp:17:41: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIMBUFF, fin); ^ main.cpp:25:41: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIMBUFF, fin); ^ main.cpp: In function 'int main()': main.cpp:32:30: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIMBUFF,fin); ^