Lawn Mower.cpp

#include <iostream>
#include <algorithm>

using namespace std;

int main () {

    int a, b;
    double c;
    while (true) {
        bool test = true;
        cin >> a >> b >> c;
        if (a == 0 && b == 0 && c == 0)
            return 0;
        double wid[a], len[b];
        for (int i = 0; i < a; i++)
            cin >> wid[i];
        for (int i = 0; i < b; i++)
            cin >> len[i];
        sort (wid, wid + a);
        sort (len, len + b);
        if (wid[0] > (c / 2) || len[0] > (c / 2))
            test = false;
        else if (75 - wid[a - 1] > (c / 2) || 100 - len[b - 1] > (c / 2))
            test = false;
        else {
            for (int i = 0; i < a - 1; i++) {
                if (wid[i + 1] - wid[i] > c)
                    test = false;
            }
            if (test == true) {
                for (int i = 0; i < b - 1; i++) {
                    if (len[i + 1] - len[i] > c)
                        test = false;
                }
            }
        }
        if (test == true)
            cout << "YES" << endl;
        else
            cout << "NO" << endl;
    }

    return 0;
}