B3941 [GESP样题 五级] 小杨的锻炼

https://www.luogu.com.cn/record/174741177

Luogu/B3941/B3941.cpp

@@ -0,0 +1,39 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 15;
+
+int n, a[N], ans;
+
+int gcd(int x, int y) {
+    if (x == 0) return y;
+    return gcd(y % x, x);
+}
+
+int lcm(int x, int y) {
+    return x / gcd(x, y) * y;
+}
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n;
+
+    for (int i = 0; i < n; i++) {
+        cin >> a[i];
+    }
+
+    ans = a[0];
+
+    for (int i = 1; i < n; i++) {
+        ans = lcm(ans, a[i]);
+    }
+
+    cout << ans << endl;
+
+    return 0;
+}