Interesting number

input/code.cpp: In function 'int main()':
input/code.cpp:23:5: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
     for(int i=0; i<t; t++) {
     ^

#include <iostream>
 
using namespace std;
 
//ios_base::sync_with_stdio(0);
//cin.tie(0);
 
 
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t;
    //cin >> t;
    int n;
    int x;
    
    int alkuluvut[1001] = {};
    for(int i=2; i<100; i++) {
        for(int j=i*i; j<1001; j+=i) alkuluvut[j]=1; 
    }    
 
    
    for(int i=0; i<t; t++) {
        cin >> n;
        for(int j=0; j<n; j++) {
            cin >> x;
            if(x>99){
                if(x/100==x%10){ //palindromi
                    if(alkuluvut[x]==0){
                        cout << x;
                        //break;                    
                    }
                }
            }
            else if(x>9){
                if(x/10==x%10){ 
                        if(alkuluvut[x]==0){
                        cout << x;
                        //break;                    
                        }
                }
            } else {
                if(alkuluvut[x]==0){
                        cout << x;
                        //break;                    
                }
            }
        }
    }
}
 
 
 

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER