为什么不输出啊喂~

ttkuilei @ 2022-07-27 14:28:30

#include<iostream>
#include<string>
#include<cmath>
using namespace std;
int main() {
    char a[40010]={'0'};
    int i=1,sum=0;
    while(cin>>a[i]) i++;
    cout<<sqrt(i);
    for(int j=1;j<i;j++) {
        if(a[j]==a[j-1]) sum++;
        else {
            cout<<sum<<" ";
            sum=1;
        }
    }
    cout<<sum;
    return 0;
}

by ttkuilei @ 2022-07-27 14:57:48

@DogSeven

输出结果：7.48331 3 1 3 1 3 1 3 1 3 4 1 3 1 3 1 3 1 3 1 3 1 3 1 7 1

就离谱

7.48331^2=56

后面一堆加起来也是56

by qczrz6v4nhp6u @ 2022-07-27 15:01:56

@tangjiayang az 我改了改你的代码都AC了呀

#include<iostream>
#include<string>
#include<cmath>
using namespace std;
int main() {
    char a[40010]={'0'};
    int i=1,sum=0;
    while(cin>>a[i])i++;
    i--;
    cout<<sqrt(i);
    for(int j=1;j<=i;j++) {
        if(a[j]==a[j-1]) sum++;
        else {
            cout<<" "<<sum;
            sum=1;
        }
    }
    cout<<" "<<sum;
    return 0;
}

by qczrz6v4nhp6u @ 2022-07-27 15:02:57

@tangjiayang 你多读了换行符

by ttkuilei @ 2022-07-27 15:08:17

@DogSeven 好像是

应该是scanf("%c",&a[i])!=EOF的问题

改成cin>>a[i]就好了

by _Cppsteve_ @ 2022-07-27 15:45:00

@tangjiayang 用洛谷在线IDE就可以避免这种问题