大连网络赛 1006 Football Games

Posted 2020-08-08 blues

 1 //大连网络赛 1006 
 2 // 吐槽：数据比较水。下面代码可以AC
 3 // 但是正解好像是：排序后，前i项的和大于等于i*(i-1) 
 4 
 5 #include <bits/stdc++.h>
 6 using namespace std;
 7 #define LL long long
 8 typedef pair<int,int> pii;
 9 const double inf = 123456789012345.0;
10 const LL MOD =100000000LL;
11 const int N =1e4+10;
12 #define clc(a,b) memset(a,b,sizeof(a))
13 const double eps = 1e-7;
14 void fre() {freopen("in.txt","r",stdin);}
15 void freout() {freopen("out.txt","w",stdout);}
16 inline int read() {int x=0,f=1;char ch=getchar();while(ch>‘9‘||ch<‘0‘) {if(ch==‘-‘) f=-1; ch=getchar();}while(ch>=‘0‘&&ch<=‘9‘) {x=x*10+ch-‘0‘;ch=getchar();}return x*f;}
17 
18 int main(){
19     int T;
20     while(~scanf("%d",&T)){
21         while(T--){
22             int n;
23             scanf("%d",&n);
24             LL sum=0;
25             int maxx=-1;
26             for(int i=1;i<=n;i++){
27                 int x;
28                 scanf("%d",&x);
29                 maxx=max(maxx,x);
30                 sum+=x;
31             }
32             if((sum==n*(n-1))&&maxx<=(n-1)*2){
33                 puts("T");
34             }
35             else puts("F");
36         }
37     }
38     return 0;
39 }