Compilare: main.cpp: In function 'int main()': main.cpp:41:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= nrcif; i++) ~~^~~~~~~~ main.cpp:47:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= nrcif; i++){ ~~^~~~~~~~ main.cpp:24:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%llu", &p, &n); ^