Main.cc:3:17: error: ‘INT_MAX’ was not declared in this scope int n,a[20],ans=INT_MAX,t=0; ^~~~~~~ Main.cc:3:17: note: suggested alternative: ‘INT8_MAX’ int n,a[20],ans=INT_MAX,t=0; ^~~~~~~ INT8_MAX Main.cc: In function ‘int main()’: Main.cc:26:35: error: ‘t’ was not declared in this scope for(int i=1; i<=n; i++)cin>>a[i],t+=abs(a[i]/10-a[i]%10); ^ Main.cc:27:39: error: ‘t’ was not declared in this scope for(int i=1; i<=n; i++)f[i]=1,search(t,i,1),f[i]=0; ^