結果
| 問題 | No.17 2つの地点に泊まりたい |
| コンテスト | |
| ユーザー |
nCk_cv
|
| 提出日時 | 2016-07-03 00:56:56 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 70 ms / 5,000 ms |
| コード長 | 3,812 bytes |
| 記録 | |
| コンパイル時間 | 2,344 ms |
| コンパイル使用メモリ | 80,372 KB |
| 実行使用メモリ | 43,920 KB |
| 最終ジャッジ日時 | 2025-12-01 16:09:01 |
| 合計ジャッジ時間 | 4,992 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 28 |
ソースコード
import java.io.*;
import java.math.*;
import java.util.*;
class Main {
static int[] vy = {1,0,-1,0};
static int[] vx = {0,1,0,-1};
static long mod = 1000000007;
public static void main(String[] args) {
FastScanner sc = new FastScanner();
//Scanner sc = new Scanner(System.in);
PrintWriter out = new PrintWriter(System.out);
int N = sc.nextInt();
int[] S = new int[N];
for(int i = 0; i < N; i++) {
S[i] = sc.nextInt();
}
int M = sc.nextInt();
int[][] cost = new int[N][N];
for(int i = 0; i < N; i++) {
Arrays.fill(cost[i], 2 << 27);
cost[i][i] = 0;
}
for(int i = 0; i < M; i++) {
int a = sc.nextInt();
int b = sc.nextInt();
int c = sc.nextInt();
cost[a][b] = cost[b][a] = c;
}
for(int k = 0; k < N; k++) {
for(int i = 0; i < N; i++) {
for(int j = 0; j < N; j++) {
cost[i][j] = Math.min(cost[i][k] + cost[k][j],cost[i][j]);
}
}
}
int MIN = 2 << 27;
for(int i = 1; i < N-1; i++) {
for(int j = 1; j < N-1; j++) {
if(i == j) continue;
MIN = Math.min(cost[0][i] + cost[i][j] + cost[j][N-1] + S[i] + S[j], MIN);
}
}
System.out.println(MIN);
}
static class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
public boolean hasNext() { skipUnprintable(); return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
if (!hasNext()) throw new NoSuchElementException();
int n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
}
}
nCk_cv