Compilare: main.cpp: In function 'int main()': main.cpp:45:15: warning: unused variable 'nr' [-Wunused-variable] ll m, x, i, nr, rez; ^~ main.cpp:49:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%lld", &n, &m ); ^ main.cpp:51:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%lld", &x ); ^