题解 | #获取字符串长度#

#include <iostream>
using namespace std;

int main() {

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

    // write your code here......
    char* p = str;
    while (*p++ != '\0');
    cout << p - str - 1;
    
    return 0;
}