結果
| 問題 |
No.520 プロジェクトオイラーへの招待
|
| コンテスト | |
| ユーザー |
hiromi_ayase
|
| 提出日時 | 2017-05-31 17:25:12 |
| 言語 | Java (openjdk 23) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 4,047 bytes |
| コンパイル時間 | 4,685 ms |
| コンパイル使用メモリ | 77,408 KB |
| 実行使用メモリ | 37,220 KB |
| 最終ジャッジ日時 | 2024-09-21 20:21:55 |
| 合計ジャッジ時間 | 2,882 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 4 RE * 3 |
ソースコード
import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;
public class Main {
public static void main(String[] args) {
FastScanner sc = new FastScanner();
int N = sc.nextInt();
for (int i = 0; i < N; i ++) {
int a = sc.nextInt();
int b = sc.nextInt();
int c = sc.nextInt();
System.out.println(solve(a, b, c));
}
}
private static long mod = 1000000007;
private static long solve(int a, int b, int c) {
long ret = 0;
ret += calc(a, b + c + 1);
ret %= mod;
ret += calc(b, c + a + 1);
ret %= mod;
ret += calc(c, a + b + 1);
ret %= mod;
for (int i = 0; i < a; i ++) {
for (int j = 0; j < b; j ++) {
for (int k = 0; k < c; k ++) {
long now = 1;
now *= calc(i + 1, j + 1);
now %= mod;
now *= calc(a - i, k + 1);
now %= mod;
now *= calc(b - j, c - k);
now %= mod;
ret += now;
ret %= mod;
}
}
}
return ret;
}
private static long[][] dp = new long[101][101];
private static long calc(int a, int b) {
if (dp[a][b] > 0) return dp[a][b];
if (a == 1 || b == 1) return 1;
dp[a][b] = (calc(a - 1, b) + calc(a, b - 1)) % mod;
return dp[a][b];
}
}
class FastScanner {
public static String debug = null;
private final InputStream in = System.in;
private int ptr = 0;
private int buflen = 0;
private byte[] buffer = new byte[1024];
private boolean eos = false;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
} else {
ptr = 0;
try {
if (debug != null) {
buflen = debug.length();
buffer = debug.getBytes();
debug = "";
eos = true;
} else {
buflen = in.read(buffer);
}
} catch (IOException e) {
e.printStackTrace();
}
if (buflen < 0) {
eos = true;
return false;
} else 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 isEOS() {
return this.eos;
}
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() {
return (int) nextLong();
}
public long[] nextLongList(int n) {
return nextLongTable(1, n)[0];
}
public int[] nextIntList(int n) {
return nextIntTable(1, n)[0];
}
public long[][] nextLongTable(int n, int m) {
long[][] ret = new long[n][m];
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
ret[i][j] = nextLong();
}
}
return ret;
}
public int[][] nextIntTable(int n, int m) {
int[][] ret = new int[n][m];
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
ret[i][j] = nextInt();
}
}
return ret;
}
}
hiromi_ayase