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Cod sursa(job #632196)
#include<iostream>
#include<fstream>
#include<string.h>
using namespace std;
int main ()
{
int t,i,j,a,b,c,n;
char s[1001];
ifstream f("tm.in");
ofstream g("tm.out");
f>>t;
for(i=1;i<=t;i++) {
f>>s;
n=strlen(s)-1;
a=0;
b=0;
c=0;
for(j=0;j<=n;j++)
if(s[j]=='a')
a++;
else if(s[j]=='b')
b++;
else c++;
if((a==b)||(b==c))
g<<"DA";
else g<<"NU";
g<<'\n';
}
f.close();
g.close();
return 0;
}