CSES - HIIT Open 2016 - Results
Submission details
Task:Interesting number
Sender:zah
Submission time:2016-05-28 11:56:36 +0300
Language:C++
Status:READY
Result:
Test results
testverdicttime
#1--details
#2--details

Code

#include <iostream>

using namespace std;

//ios_base::sync_with_stdio(0);
//cin.tie(0);


int main(){
    int t;
    cin >> t;
    int n;
    int x;
    
    int alkuluvut[1001] = {};
    for(int i=2; i<100; i++) {
        for(int j=2*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;                    
                    }
                }
            }
            if(x>9){
                if(x/10==x%10){ 
                        if(alkuluvut[x]==0){
                        cout << x;
                        break;                    
                        }
                }
            } else {
                if(alkuluvut[x]==0){
                        cout << x;
                        break;                    
                }
              }
        }
    }
}



Test details

Test 1

Verdict:

input
1000
9
300 988 956 931 116 3 386 202 ...

correct output
3
3
181
919
191
...

user output
(empty)

Test 2

Verdict:

input
1
100000
72 247 605 249 10 422 594 490 ...

correct output
191

user output
(empty)