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I have been getting a weird WA

here's my code :

#include <iostream>
#include <cstdlib>
#include <vector>
#include <string>

using namespace std;

int main()
{

string s;
while(getline(cin,s)){
if(s=="DONE")
break;
for(int i=0;i<s.length();i++)
if(s[i] == ' ' || s[i]== '.' || s[i]==',' || s ...