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UCLN_De_Quy.cpp
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// UCLN_De_Quy.cpp #include <bits/stdc++.h> using namespace std; int ucln(int a, int b) { if (a % b == 0) return b; return ucln(b, a % b); } int main() { int a, b; cout << "Nhap a, b: "; cin >> a >> b; cout << "Ket qua: " << ucln(a, b); return 0; }