Compilare: user.cpp: In function ‘int main()’: user.cpp:8:15: warning: unused variable ‘s’ [-Wunused-variable] int n ,i ,s ,suma ,cnt=0; ^ user.cpp:9:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%d" ,&n); ^ user.cpp:14:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%d" ,&v[i]); ^