2017 Multi-University Training Contest 2 hdu 6045

HDU 6045

思路：

AC代码：

#include "iostream"
#include "string.h"
#include "stack"
#include "queue"
#include "string"
#include "vector"
#include "set"
#include "map"
#include "algorithm"
#include "stdio.h"
#include "math.h"
#pragma comment(linker, "/STACK:102400000,102400000")
#define ll long long
#define endl ("
")
#define bug(x) cout<<x<<" "<<"UUUUU"<<endl;
#define mem(a,x) memset(a,x,sizeof(a))
#define mp(x,y) make_pair(x,y)
#define pb(x) push_back(x)
#define ft (frist)
#define sd (second)
#define lrt (rt<<1)
#define rrt (rt<<1|1)
using namespace std;
const long long INF = 1e18+1LL;
const int inf = 1e9+1e8;
const int N=1e5+100;
const ll mod=1e9+7;

///1001

int n,x,y;
char s1[N],s2[N];
int main(){
    //ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    int T;
    cin>>T;
    while(T--){
        int cnt1=0, cnt2=0;
        cin>>n>>x>>y;
        cin>>s1>>s2;
        for(int i=0; i<n; ++i){
            if(s1[i]==s2[i]) cnt1++;
        }
        cnt2=n-cnt1;
        int ma,mi;
        if(x<=cnt1) ma=x+cnt2;
        else ma=cnt1+(n-x);
        if(x>=cnt2) mi=x-cnt2;
        else mi=0;
        if(y>=mi && y<=ma) cout<<"Not lying
";
        else cout<<"Lying
";
    }
    return 0;
}