题解 | #获取字符串长度#

#include <cstddef>
#include <iostream>
using namespace std;

int main() {

    char str[100] = { 0 };
    cin.getline(str, sizeof(str));

    // write your code here......
    int sum = 0;
    char* ptr = str;

    for (int i = 0; i<=99; i++)
    {
        if (*(ptr+i) != NULL)
            sum ++;        

    }
    cout << sum;

    return 0;
}