Compilare: user.cpp: In function ‘void fact(int, int&)’: user.cpp:25:27: warning: narrowing conversion of ‘c’ from ‘i64 {aka long long int}’ to ‘int’ inside { } [-Wnarrowing] v.push_back({c, b}); ^ user.cpp:29:27: warning: narrowing conversion of ‘c’ from ‘i64 {aka long long int}’ to ‘int’ inside { } [-Wnarrowing] v.push_back({c, 1}); ^ user.cpp: In function ‘int main()’: user.cpp:40:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&n); ^