Compilare: user.cpp: In function ‘int main()’: user.cpp:10:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&s); ^ user.cpp:12:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&v[i]); ^ user.cpp:56:25: warning: ‘s2’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(z<n&&v[i]+v[j]+v[z]!=s2) ^ user.cpp:48:25: warning: ‘s1’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(z<n&&v[i]+v[j]+v[z]!=s1) ^