Untitled

QUEs 1

#include <iostream>
using namespace std;
 
int main () {
    int t;
    cin >> t;
    while (t--) {
        string s;
        cin >> s;
        int ans = 0;
        int digit = s[0] - '0';
        if (digit == 0) ans += (10 - 1);
        else ans += (digit-1);
        ans++;
 
        for (int i=1; i<4; i++) {
            digit = s[i]-'0';
            int prev = s[i-1] - '0';
            if (prev==0) prev=10;
            if (digit==0) {
                ans += (10 - prev);
            }
            else ans += abs(digit-prev);
            ans++;
        }
        cout << ans << '\n';
    }
    return 0;


QUes 2

#include  <iostream>
using namespace std;
 
int main() {
    int t;
    cin >> t;
    while (t--) {
        int n,k;
        cin >> n >> k;
        int arr[26] = {0};
        string s;
        cin >> s;
        for (char &ch: s) {
            arr[ch-'a']++;
        }
        int odd = 0;
        for (int &x: arr) {
            if (x%2==1) odd++;
        }
        if ( odd - k <= 1) cout << "YES" << '\n';
        else cout << "NO" << '\n';
    }
}


QUES 3

#include <iostream>
using namespace std;
 
int main () {
    int t;
    cin >> t;
    while (t--) {
        int n, k;
        cin >> n >> k;
        int num;
        if (k==2) {
            bool div = false;
            while (n--) {
                cin >> num;
                if (num%2 == 0) div = true;
            }
            if (div) cout << 0 << '\n';
            else cout << 1 << '\n';
        }
        else if (k==3) {
            bool rem0=false, rem1=false, rem2=false;
            while (n--) {
                cin >> num;
                if (num%3==0) rem0 = true;
                else if (num%3==1) rem1 = true;
                else rem2 = true;
            }
            if (rem0) cout << 0 << '\n';
            else if (rem2) cout << 1 << '\n';
            else cout << 2 << '\n';
        }
        else if (k==4) {
            int div2=0, div4=0, maxrem=1, nott=0;
            while (n--) {
                cin >> num;
                if (num%4==0) div4 = 1;
                if (num%2==0) div2++;
                else nott++;
                maxrem = max (maxrem, num%4);
            }
            if (div4 || div2>=2) cout << 0 << '\n';
            else if (maxrem==3 || (div2==1 && nott>=1)) cout << 1 << '\n';
            else cout << 2 << '\n';
        }
        else {
            bool div = false;
            int maxrem = 0;
            while (n--) {
                cin >> num;
                if (num%5==0) div = true;
                maxrem = max (maxrem, num%5);
            }
            if (div) cout << 0 << '\n';
            else cout << 5 - maxrem << '\n';
        }
    }
    return 0;
}