結果
| 問題 |
No.475 最終日 - Writerの怠慢
|
| コンテスト | |
| ユーザー |
rickytheta
|
| 提出日時 | 2016-12-25 00:09:22 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 18 ms / 2,000 ms |
| コード長 | 1,468 bytes |
| コンパイル時間 | 1,593 ms |
| コンパイル使用メモリ | 160,108 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2024-12-24 01:30:57 |
| 合計ジャッジ時間 | 2,400 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 15 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:42:11: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=]
42 | scanf("%d%d%d",&n,&s,&id);
| ~^ ~~
| | |
| int* long long int*
| %lld
main.cpp:42:13: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=]
42 | scanf("%d%d%d",&n,&s,&id);
| ~^ ~~
| | |
| int* long long int*
| %lld
main.cpp:42:15: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long long int*’ [-Wformat=]
42 | scanf("%d%d%d",&n,&s,&id);
| ~^ ~~~
| | |
| int* long long int*
| %lld
main.cpp:43:19: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=]
43 | REP(i,n)scanf("%d",a+i);
| ~^ ~~~
| | |
| | long long int*
| int*
| %lld
main.cpp:42:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
42 | scanf("%d%d%d",&n,&s,&id);
| ~~~~~^~~~~~~~~~~~~~~~~~~~
main.cpp:43:16: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
43 | REP(i,n)scanf("%d",a+i);
| ~~~~~^~~~~~~~~~
ソースコード
// Merry Christmas! (1発で通ってくれ)
#include <bits/stdc++.h>
#define int long long
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef int _loop_int;
#define REP(i,n) for(_loop_int i=0;i<(_loop_int)(n);++i)
#define FOR(i,a,b) for(_loop_int i=(_loop_int)(a);i<(_loop_int)(b);++i)
#define FORR(i,a,b) for(_loop_int i=(_loop_int)(b)-1;i>=(_loop_int)(a);--i)
#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()
#define CHMIN(a,b) a=min((a),(b))
#define CHMAX(a,b) a=max((a),(b))
// mod
const ll MOD = 1000000007ll;
#define FIX(a) ((a)%MOD+MOD)%MOD
// floating
typedef double Real;
const Real EPS = 1e-11;
#define EQ0(x) (abs(x)<EPS)
#define EQ(a,b) (abs(a-b)<EPS)
typedef complex<Real> P;
int n,s,id;
int a[83025];
signed main(){
scanf("%d%d%d",&n,&s,&id);
REP(i,n)scanf("%d",a+i);
int writerscore = s*100 + a[id];
a[id] = 1e9;
sort(a,a+n);
double ans = 1.0;
int ok_line = 0;
REP(i,n-1){
int score = (450*s + 50*s*(i+1)) / (5+i);
while(ok_line<n-1){
if(score + a[ok_line] <= writerscore)ok_line++;
else break;
}
int choice = ok_line - i;
int all = n-1-i;
if(choice <= 0){
ans = 0.0;
break;
}else{
ans *= (double)choice / all;
}
}
printf("%.12f\n",ans);
return 0;
}
rickytheta