【HDU】6045 - Is Derek lying?（思维）

#include<queue>
#include<cmath>
#include<stack>
#include<cstdio>
#include<vector>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
typedef long long LL;
#define INF 0x3f3f3f3f
#define CLR(a,b) memset(a,b,sizeof(a))
#define PI acos(-1.0)
int main()
{
    int T;
    int same,dif;
    int n;
    string a,b;
    int ga,gb;
    scanf ("%d",&T);
    while (T--)
    {
        scanf ("%d %d %d",&n,&ga,&gb);
        cin >> a;
        cin >> b;
        same = dif = 0;
        for (int i = 0 ; i < a.size() ; i++)
        {
            if (a[i] == b[i])
                same++;
            else
                dif++;
        }
        int maxx;
        if (gb >= same)
            maxx = n - (gb-same);
        else
            maxx = gb + dif;
        if (gb > dif)
        {
            if (ga >= gb-dif && ga <= maxx)
                puts("Not lying");
            else
                puts("Lying");
        }
        else
        {
            if (ga >= 0 && ga <= maxx)
                puts("Not lying");
            else
                puts("Lying");
        }
    }
    return 0;
}