Compilare: main.cpp:2:20: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] #define DIM (1<<20 + 5) ~~~^~~ main.cpp:8:22: note: in expansion of macro 'DIM' unsigned int n,l,u,v[DIM]; ^~~ main.cpp: In function 'int main()': main.cpp:34:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=n; i++) ~^~~ main.cpp:37:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<=n;i++){ ~^~~ 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:32:33: 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); ^