Compilare: user.cpp: In function ‘void updatee(int, int, int)’: user.cpp:41:13: warning: unused variable ‘nr’ [-Wunused-variable] long mi,nr; ^ user.cpp: In function ‘void solve()’: user.cpp:101:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&cod); ^ user.cpp:111:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld%ld",&a,&b); ^ user.cpp:118:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld%ld",&a,&b); ^ user.cpp: In function ‘int main()’: user.cpp:130:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld%ld",&n,&m); ^