Submission #3446303
Source Code Expand
#include<bits/stdc++.h> #define ui unsigned int #define ll long long #define db double #define ld long double #define ull unsigned long long #define mp(a,b) std::make_pair(a,b) #define ITR(a,b) for(auto a:b) #define REP(a,b,c) for(register int a=(b),a##end=(c);a<=a##end;++a) #define DEP(a,b,c) for(register int a=(b),a##end=(c);a>=a##end;--a) const int MAXN=100+10,MAXM=MAXN*MAXN; const ld eps=1e-6,inf=1000000000.00; int n,m,H,e,beg[MAXN],nex[MAXM],to[MAXM],val[MAXN],Mx[MAXN],d[MAXN]; ld f[MAXN][MAXN]; template<typename T> inline void read(T &x) { T data=0,w=1; char ch=0; while(ch!='-'&&(ch<'0'||ch>'9'))ch=getchar(); if(ch=='-')w=-1,ch=getchar(); while(ch>='0'&&ch<='9')data=((T)data<<3)+((T)data<<1)+(ch^'0'),ch=getchar(); x=data*w; } template<typename T> inline void write(T x,char ch='\0') { if(x<0)putchar('-'),x=-x; if(x>9)write(x/10); putchar(x%10+'0'); if(ch!='\0')putchar(ch); } template<typename T> inline void chkmin(T &x,T y){x=(y<x?y:x);} template<typename T> inline void chkmax(T &x,T y){x=(y>x?y:x);} template<typename T> inline T min(T x,T y){return x<y?x:y;} template<typename T> inline T max(T x,T y){return x>y?x:y;} inline void insert(int x,int y) { to[++e]=y; nex[e]=beg[x]; beg[x]=e; } inline ld check(ld base) { REP(i,1,n)REP(j,1,H)f[i][j]=inf; REP(i,1,H)f[n][i]=0; DEP(x,n-1,1)REP(h,1,H) if(Mx[x]<h) { ld res=0.0; for(register int i=beg[x];i;i=nex[i]) res+=min(f[to[i]][h-val[to[i]]],base+H-(h-val[to[i]])); f[x][h]=(1.0/(ld)d[x])*res+1.0; } return f[1][H]; } int main() { read(n);read(m);read(H); REP(i,1,m) { int u,v;read(u);read(v); insert(u,v); } REP(i,1,n)read(val[i]); REP(x,1,n)for(register int i=beg[x];i;i=nex[i])chkmax(Mx[x],val[to[i]]),d[x]++; ld l=0,r=2000000.00,ans=2000000.00; while(r-l>eps) { ld mid=(l+r)*0.5; if(check(mid)<=mid)ans=mid,r=mid; else l=mid; } if(ans>1000000)ans=-1; printf("%.12Lf\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - 軍艦ゲーム |
User | hyj542682306 |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1996 Byte |
Status | AC |
Exec Time | 76 ms |
Memory | 512 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 100 / 100 | ||
Status |
|
Set Name | Test Cases |
---|---|
All | 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, handmade_01.txt, handmade_02.txt, handmade_03.txt, handmade_04.txt, handmade_05.txt, handmade_06.txt, handmade_07.txt, handmade_08.txt, handmade_09.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt, test_31.txt, test_32.txt, test_33.txt, test_34.txt, test_35.txt, test_36.txt, test_37.txt, test_38.txt, test_39.txt, test_40.txt, test_41.txt, test_42.txt, test_43.txt, test_44.txt, test_45.txt, test_46.txt, test_47.txt, test_48.txt, test_49.txt, test_50.txt, test_51.txt, test_52.txt, test_53.txt, test_54.txt, test_55.txt, test_56.txt, test_57.txt, test_58.txt, test_59.txt, test_60.txt, test_61.txt, test_62.txt, test_63.txt, test_64.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_sample_01.txt | AC | 1 ms | 256 KB |
00_sample_02.txt | AC | 1 ms | 256 KB |
00_sample_03.txt | AC | 1 ms | 256 KB |
00_sample_04.txt | AC | 1 ms | 256 KB |
handmade_01.txt | AC | 1 ms | 256 KB |
handmade_02.txt | AC | 1 ms | 256 KB |
handmade_03.txt | AC | 1 ms | 256 KB |
handmade_04.txt | AC | 1 ms | 256 KB |
handmade_05.txt | AC | 1 ms | 256 KB |
handmade_06.txt | AC | 1 ms | 256 KB |
handmade_07.txt | AC | 1 ms | 256 KB |
handmade_08.txt | AC | 4 ms | 256 KB |
handmade_09.txt | AC | 1 ms | 256 KB |
test_01.txt | AC | 1 ms | 256 KB |
test_02.txt | AC | 1 ms | 256 KB |
test_03.txt | AC | 5 ms | 384 KB |
test_04.txt | AC | 5 ms | 384 KB |
test_05.txt | AC | 3 ms | 512 KB |
test_06.txt | AC | 8 ms | 512 KB |
test_07.txt | AC | 76 ms | 512 KB |
test_08.txt | AC | 4 ms | 512 KB |
test_09.txt | AC | 3 ms | 384 KB |
test_10.txt | AC | 2 ms | 256 KB |
test_11.txt | AC | 4 ms | 384 KB |
test_12.txt | AC | 1 ms | 256 KB |
test_13.txt | AC | 4 ms | 384 KB |
test_14.txt | AC | 4 ms | 384 KB |
test_15.txt | AC | 2 ms | 512 KB |
test_16.txt | AC | 3 ms | 512 KB |
test_17.txt | AC | 43 ms | 512 KB |
test_18.txt | AC | 39 ms | 512 KB |
test_19.txt | AC | 9 ms | 384 KB |
test_20.txt | AC | 60 ms | 512 KB |
test_21.txt | AC | 4 ms | 384 KB |
test_22.txt | AC | 2 ms | 384 KB |
test_23.txt | AC | 4 ms | 384 KB |
test_24.txt | AC | 6 ms | 384 KB |
test_25.txt | AC | 9 ms | 384 KB |
test_26.txt | AC | 2 ms | 384 KB |
test_27.txt | AC | 4 ms | 384 KB |
test_28.txt | AC | 15 ms | 384 KB |
test_29.txt | AC | 4 ms | 512 KB |
test_30.txt | AC | 5 ms | 384 KB |
test_31.txt | AC | 2 ms | 256 KB |
test_32.txt | AC | 4 ms | 384 KB |
test_33.txt | AC | 48 ms | 512 KB |
test_34.txt | AC | 21 ms | 384 KB |
test_35.txt | AC | 3 ms | 384 KB |
test_36.txt | AC | 48 ms | 512 KB |
test_37.txt | AC | 4 ms | 512 KB |
test_38.txt | AC | 3 ms | 384 KB |
test_39.txt | AC | 3 ms | 384 KB |
test_40.txt | AC | 7 ms | 384 KB |
test_41.txt | AC | 6 ms | 384 KB |
test_42.txt | AC | 5 ms | 384 KB |
test_43.txt | AC | 4 ms | 384 KB |
test_44.txt | AC | 10 ms | 512 KB |
test_45.txt | AC | 4 ms | 384 KB |
test_46.txt | AC | 4 ms | 384 KB |
test_47.txt | AC | 4 ms | 384 KB |
test_48.txt | AC | 4 ms | 384 KB |
test_49.txt | AC | 28 ms | 384 KB |
test_50.txt | AC | 4 ms | 384 KB |
test_51.txt | AC | 7 ms | 384 KB |
test_52.txt | AC | 67 ms | 512 KB |
test_53.txt | AC | 4 ms | 512 KB |
test_54.txt | AC | 15 ms | 384 KB |
test_55.txt | AC | 10 ms | 384 KB |
test_56.txt | AC | 39 ms | 384 KB |
test_57.txt | AC | 8 ms | 384 KB |
test_58.txt | AC | 6 ms | 384 KB |
test_59.txt | AC | 8 ms | 384 KB |
test_60.txt | AC | 8 ms | 384 KB |
test_61.txt | AC | 13 ms | 384 KB |
test_62.txt | AC | 7 ms | 384 KB |
test_63.txt | AC | 1 ms | 256 KB |
test_64.txt | AC | 7 ms | 512 KB |