【codeforces 812A】Sagheer and Crossroads

【题目链接】:http://codeforces.com/contest/812/problem/A

【题意】



有一个小箭头指的那个地方;

指的就是人行道路;

然后p[i]指的就是那4个人行道是不是绿灯;

然后问你会不会发生事故;

【题解】



根据每一个p值是不是1;

判断其他地方的车会不会到这个人行道上来就好;



【Number Of WA】



1



【完整代码】

#include <bits/stdc++.h>
using namespace std;
#define lson l,m,rt<<1
#define rson m+1,r,rt<<1|1
#define LL long long
#define rep1(i,a,b) for (int i = a;i <= b;i++)
#define rep2(i,a,b) for (int i = a;i >= b;i--)
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define ms(x,y) memset(x,y,sizeof x)
#define Open() freopen("F:\\rush.txt","r",stdin)
#define Close() ios::sync_with_stdio(0),cin.tie(0)

typedef pair<int,int> pii;
typedef pair<LL,LL> pll;

const int dx[9] = {0,1,-1,0,0,-1,-1,1,1};
const int dy[9] = {0,0,0,-1,1,-1,1,-1,1};
const double pi = acos(-1.0);
const int N = 110;

int l[5],s[5],r[5],p[5];

void out(){
    cout <<"YES"<<endl;
    exit(0);
}

int main(){
    //Open();
    Close();//scanf,puts,printf not use
    //init??????
    rep1(i,1,4){
        cin >> l[i] >> s[i] >> r[i] >> p[i];
    }
    if (p[1]==1){
        if (l[1] || s[1] || r[1] || l[2] || s[3] || r[4])
            out();
    }
    if (p[2]==1){
        if (l[2] ||s[2] || r[2] || l[3] || s[4] || r[1]) out();
    }
    if (p[3]==1){
        if (l[3] ||s[3] || r[3] || l[4] || s[1] || r[2]) out();
    }
    if (p[4]==1){
        if (l[4] || s[4] || r[4] || l[1] || s[2] || r[3]) out();
    }
    cout <<"NO"<<endl;
    return 0;
}