'commit'

2025-08-30 18:35:01 +08:00
commit 1f397eca87
6258 changed files with 1487241 additions and 0 deletions
--- a/C++课程/第十六课循环结构程序设计实例2/p169.cpp
+++ b/C++课程/第十六课循环结构程序设计实例2/p169.cpp
@@ -0,0 +1,18 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+int main() {
+	int ans=0,i,n,x,tmp;
+	cin>>n>>x;
+	for(int i=1; i<=n; i++) {
+		tmp=i;
+		while(tmp>=1) {
+			if(tmp%10==x) ans++;
+			tmp/=10;
+		}
+	}
+	cout<<ans;
+	return 0;
+}
+
+