Compilare: user.cpp: In function ‘int main()’: user.cpp:18:9: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] int ok=false; ^ user.cpp:21:11: warning: unused variable ‘g’ [-Wunused-variable] FILE *g=fopen("algsort.out","w"); ^ user.cpp:22:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:24:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&v[i]); ^