Compilare: user.cpp: In function ‘int main()’: user.cpp:40:31: warning: format ‘%c’ expects argument of type ‘char*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(fi,"%c " ,&val[i]); ^ user.cpp:33:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:35:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&x,&y); ^ user.cpp:40:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%c " ,&val[i]); ^