Compilare: user.cpp: In function ‘int main()’: user.cpp:13:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ user.cpp:16:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&cer,&ppl,&wg); ^ user.cpp:25:19: warning: ‘sw’ may be used uninitialized in this function [-Wmaybe-uninitialized] sw+=wg; ^ user.cpp:24:22: warning: ‘sppl’ may be used uninitialized in this function [-Wmaybe-uninitialized] sppl+=ppl; ^