Compilare: user.cpp: In function ‘int main()’: user.cpp:41:13: warning: unused variable ‘j’ [-Wunused-variable] int i=0,j; ^ user.cpp:44:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(intrare,"%d%d\n",&n,&k); ^ user.cpp:45:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(intrare,"%c",&v[i]); ^ user.cpp:49:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(intrare,"%c",&v[i]); ^