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Huhu_Miao: 2024-11-20 17:17:33

/**
 *    author:  Huhu_Miao
 *    created: 2024.11.20 17:16:00 (UTC+8)
**/

#include<bits/stdc++.h>

void solve(){
	std::string str;
	std::getline(std::cin , str);

	int cnt = 0;
	for(const auto elem : str){
			if(std::isdigit(elem)) cnt++;
	}
	std::cout << cnt << '\n';
}

int main(){
	std::ios::sync_with_stdio(false); std::cin.tie(nullptr);
	int T; std::cin>>T;
	std::cin.ignore(10 , '\n');
	while(T--) solve();
	return 0;
}

lycoris: 2024-03-08 16:23:52

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n, a, b;
    cin >> n;
    cin.ignore();
    for (int i = 0; i < n; i++)
    {
        int count = 0;
        char c[110];
        cin.getline(c, 110); // Specify the maximum number of characters to read
        for (int j = 0; j < strlen(c); j++)
        {
            if (c[j] >= '0' && c[j] <= '9')
            {
                count++;
            }
        }
        cout << count << endl;
    }
}

214793: 2021-10-22 16:48:32

#include<iostream>
#include<string>
#include<vector>
using namespace std;
int main()
{
	int n;
	int a[100] = {};
	cin >> n;
	cin.ignore();
	for (int i = 0; i < n; i++)
	{
		int count = 0;
		char s[100];
		cin.getline(s, 100, '\n');
		for (int i = 0; i < strlen(s); i++)
		{
			if (s[i] <= '9' && s[i] >= '0')
				count++;


		}
		a[i] = count;
	}
	for (int i = 0; i < n; i++)
		cout << a[i] << endl;
}

1: 2020-07-19 16:06:43

#include <stdio.h>

int main() {
    int n;
    char c[110];
    scanf("%d", &n);
    fgets(c, 110, stdin);
    for(int i=0; i<n; i++) {
        int count = 0;
        fgets(c, 109, stdin);
        for(int j=0; c[j]!='\0'; j++) {
            if('0'<=c[j] && c[j]<='9') {
                count++;
            }
        }
        printf("%d\n", count);
    }
}

题目判定提示:
1. 允许行末多出一个' '或者'\t'符
2. 允许最后多一空行