結果
問題 | No.298 話の伝達 |
ユーザー | holeguma |
提出日時 | 2015-11-06 23:41:43 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,150 bytes |
コンパイル時間 | 2,836 ms |
コンパイル使用メモリ | 83,328 KB |
実行使用メモリ | 42,748 KB |
最終ジャッジ日時 | 2024-09-13 13:52:15 |
合計ジャッジ時間 | 6,500 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | WA | - |
testcase_01 | WA | - |
testcase_02 | AC | 123 ms
40,984 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 122 ms
41,112 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 188 ms
42,748 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
ソースコード
import java.io.InputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; import java.util.Deque; import java.util.InputMismatchException; import java.util.NoSuchElementException; import java.math.BigDecimal; import java.math.BigInteger; public class Main{ static PrintWriter out; static InputReader ir; static void solve(){ int n=ir.nextInt(); int m=ir.nextInt(); int[] from=new int[m],to=new int[m],cost=new int[m]; for(int i=0;i<m;i++){ from[i]=ir.nextInt(); to[i]=ir.nextInt(); cost[i]=ir.nextInt(); } make_graph(n,from,to,cost); Deque<Integer> que=new ArrayDeque<>(); que.offerLast(0); double[] pos=new double[n]; pos[0]=0.0; while(!que.isEmpty()){ int now=que.pollFirst(); for(int i=0;i<graph[now].size();i++){ int next=graph[now].get(i).to; pos[next]*=((1-pos[now])*(double)graph[now].get(i).cost/100+pos[now]*(100-(double)graph[now].get(i).cost)/100+(1-pos[now])*(100-(double)graph[now].get(i).cost)/100); que.offerLast(next); } } out.printf("%.12f\n",1.0-pos[n-1]); } static AdjacencyList[] graph; public static void make_graph(int v,int[] from,int[] to,int[] cost){ graph=new AdjacencyList[v]; for(int i=0;i<v;i++) graph[i]=new AdjacencyList(); for(int i=0;i<from.length;i++){ graph[from[i]].add(new Edge(to[i],cost[i])); } } public static class Edge{ int from; int to; int cost; public Edge(int from,int to,int cost){ this.from=from; this.to=to; this.cost=cost; } public Edge(int to,int cost){ this.to=to; this.cost=cost; } } static class AdjacencyList extends ArrayList<Edge>{} public static void main(String[] args) throws Exception{ ir=new InputReader(System.in); out=new PrintWriter(System.out); solve(); out.flush(); } static class InputReader { private InputStream in; private byte[] buffer=new byte[1024]; private int curbuf; private int lenbuf; public InputReader(InputStream in) {this.in=in; this.curbuf=this.lenbuf=0;} public boolean hasNextByte() { if(curbuf>=lenbuf){ curbuf= 0; try{ lenbuf=in.read(buffer); }catch(IOException e) { throw new InputMismatchException(); } if(lenbuf<=0) return false; } return true; } private int readByte(){if(hasNextByte()) return buffer[curbuf++]; else return -1;} private boolean isSpaceChar(int c){return !(c>=33&&c<=126);} private void skip(){while(hasNextByte()&&isSpaceChar(buffer[curbuf])) curbuf++;} public boolean hasNext(){skip(); return hasNextByte();} public String next(){ if(!hasNext()) throw new NoSuchElementException(); StringBuilder sb=new StringBuilder(); int b=readByte(); while(!isSpaceChar(b)){ sb.appendCodePoint(b); b=readByte(); } return sb.toString(); } public int nextInt() { if(!hasNext()) throw new NoSuchElementException(); int c=readByte(); while (isSpaceChar(c)) c=readByte(); boolean minus=false; if (c=='-') { minus=true; c=readByte(); } int res=0; do{ if(c<'0'||c>'9') throw new InputMismatchException(); res=res*10+c-'0'; c=readByte(); }while(!isSpaceChar(c)); return (minus)?-res:res; } public long nextLong() { if(!hasNext()) throw new NoSuchElementException(); int c=readByte(); while (isSpaceChar(c)) c=readByte(); boolean minus=false; if (c=='-') { minus=true; c=readByte(); } long res = 0; do{ if(c<'0'||c>'9') throw new InputMismatchException(); res=res*10+c-'0'; c=readByte(); }while(!isSpaceChar(c)); return (minus)?-res:res; } public double nextDouble(){return Double.parseDouble(next());} public BigInteger nextBigInteger(){return new BigInteger(next());} public BigDecimal nextBigDecimal(){return new BigDecimal(next());} public int[] nextIntArray(int n){ int[] a=new int[n]; for(int i=0;i<n;i++) a[i]=nextInt(); return a; } public long[] nextLongArray(int n){ long[] a=new long[n]; for(int i=0;i<n;i++) a[i]=nextLong(); return a; } public char[][] nextCharMap(int n,int m){ char[][] map=new char[n][m]; for(int i=0;i<n;i++) map[i]=next().toCharArray(); return map; } } }