結果
| 問題 |
No.527 ナップサック容量問題
|
| コンテスト | |
| ユーザー |
tookunn_1213
|
| 提出日時 | 2017-06-10 00:04:39 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 114 ms / 2,000 ms |
| コード長 | 2,417 bytes |
| コンパイル時間 | 2,141 ms |
| コンパイル使用メモリ | 78,368 KB |
| 実行使用メモリ | 51,532 KB |
| 最終ジャッジ日時 | 2024-09-22 20:30:06 |
| 合計ジャッジ時間 | 6,444 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 37 |
ソースコード
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.NoSuchElementException;
public class Main{
int N,V;
int[] v,w;
public void solve() {
N = nextInt();
v = new int[N];
w = new int[N];
int vSum = 0;
for(int i = 0;i < N;i++){
v[i] = nextInt();
w[i] = nextInt();
vSum += v[i];
}
V = nextInt();
int[] dp = new int[N * 1000 + 1];
for(int i = 0;i < N;i++){
for(int j = N * 1000;j >= 0;j--){
if(j + w[i] <= N * 1000)dp[j+w[i]] = Math.max(dp[j+w[i]],dp[j]+v[i]);
}
}
int lower = lowerBound(dp,V);
int upper = upperBound(dp,V);
out.println(lower);
out.println(vSum <= V ? "inf" : upper);
}
public int upperBound(int[] a,int b){
int low = 1;
int high = a.length;
while(high - low > 1){
int mid = high+low >> 1;
if(a[mid] > b){
high = mid;
}else{
low = mid;
}
}
return low;
}
public int lowerBound(int[] a,int b){
int low = 0;
int high = a.length;
while(high - low > 1){
int mid = high+low >> 1;
if(a[mid] >= b){
high = mid;
}else{
low = mid;
}
}
return high;
}
public static void main(String[] args) {
out.flush();
new Main().solve();
out.close();
}
/* Input */
private static final InputStream in = System.in;
private static final PrintWriter out = new PrintWriter(System.out);
private final byte[] buffer = new byte[2048];
private int p = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (p < buflen)
return true;
p = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0)
return false;
return true;
}
public boolean hasNext() {
while (hasNextByte() && !isPrint(buffer[p])) {
p++;
}
return hasNextByte();
}
private boolean isPrint(int ch) {
if (ch >= '!' && ch <= '~')
return true;
return false;
}
private int nextByte() {
if (!hasNextByte())
return -1;
return buffer[p++];
}
public String next() {
if (!hasNext())
throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = -1;
while (isPrint((b = nextByte()))) {
sb.appendCodePoint(b);
}
return sb.toString();
}
public int nextInt() {
return Integer.parseInt(next());
}
public long nextLong() {
return Long.parseLong(next());
}
public double nextDouble() {
return Double.parseDouble(next());
}
}
tookunn_1213