uses crt; var n : longint; i,j,t : integer; begin clrscr; t:=0; write('Nhap n :'); readln(n); while n<>0 do begin t:=t+ n mod 10; n:=n div 10; end; write('Tong cac chu so cua n la :', t); readln end.
#include<bits/stdc++.h> using namespace std; int tongchuso(int n) { int sotachra,s=0; for(;n!=0;){ sotachra = n % 10; s += sotachra; n /= 10; } return s; } int main() { int n; cin>>n; cout<<tongchuso(n); //samon247 return 0; }
