更新了许多

含K个3的数.cpp

@@ -0,0 +1,25 @@
+#include <iostream>
+#include <cstring>
+#include <cstdio>
+#include <iomanip>
+using namespace std;
+int main(){
+	int a,b,c=0,d;
+	cin >>a>>b;
+	d=a;
+	while(a){
+		if(a%10==3){
+			c++;
+		}
+		a/=10;
+	}
+	if(d%19==0 && c==b){
+		cout <<"YES";
+	}
+	else{
+		cout <<"NO";
+	}
+	return 0;
+}
+
+