Compilare: user.cpp: In function ‘int main()’: user.cpp:37:9: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[i]=='W') ^ user.cpp:11:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:13:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%c" ,&v[i]); ^