yasuo👀️

五行解决

#include <bits/stdc++.h>
int main(){
    std::string q;int sum=0;getline(std::cin,q);
    for(int i=0;i<q.length();i++)if(q[i]>='0'&&q[i]<='9')sum++;
    std::cout<<sum;return 0;}

#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
#define MAX_LEN 255
int main(){
    char str[MAX_LEN];
    int length;
    int sum=0;
    fgets(str,MAX_LEN,stdin);
    length=strlen(str);
    for(int i=0;i<length;i++){
    	if(str[i]>=48&&str[i]<=57){
    		sum++;
		}
	}
	cout<< sum << endl;
    return 0;
}