Npuzzle

#include <iostream>

using namespace std;

int main(){
    int s = 0;

    for(int i=0; i<16; i++){
        char c;
        cin >> c;
        if(c == '.') c = 15;
        else c -= 65;

        s += abs(c/4-i/4)+abs(c%4-i%4);
    }

    cout << s/2;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER