题解 | #小乐乐改数字#

#include <stdio.h>

int main() 
{
    int n;
    scanf("%d", &n);
    char arr[100] = {'\0'};
    sprintf(arr, "%d", n);  //将整型转换为字符型

    for(int i=0; arr[i]!='\0'; i++)
        if(arr[i]%2 == 0)
            arr[i] = '0';
        else
            arr[i] = '1';

    int res = atoi(arr);
    printf("%d\n", res);
    return 0;
}