Pls can someone please help me with my pig latin code, my output is the same as expected but i still fail the test

Question

https://www.sololearn.com/coach/16?ref=app

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

int main(){
char sentence[100];
string arrword[100];
int j = 0;
cin.getline(sentence, 100);
char* pointer;
pointer = strtok(sentence, " ");

while(pointer != NULL){
arrword[j] = pointer;
pointer = strtok(NULL, " ");
j++;
}

for(int i = 0; i < j; i++){
string eachword = arrword[i];
int length;
char a,b;
length = eachword.length();
a = eachword[0];
eachword[0] = 0;
cout << eachword << a << "ay ";
}
return 0;
}

Answer 1

https://www.sololearn.com/Discuss/2134627/?ref=app