結果
| 問題 | No.1873 Bracket Swapping |
| ユーザー |
 uwi
|
| 提出日時 | 2022-03-11 22:12:50 |
| 言語 | Java21 (openjdk 21) |
| 結果 |
AC
|
| 実行時間 | 307 ms / 2,000 ms |
| コード長 | 14,390 bytes |
| コンパイル時間 | 5,016 ms |
| コンパイル使用メモリ | 93,776 KB |
| 実行使用メモリ | 45,784 KB |
| 最終ジャッジ日時 | 2024-09-16 02:30:47 |
| 合計ジャッジ時間 | 10,539 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge1 |
（要ログイン）
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 | AC | 71 ms
38,228 KB |
| testcase_01 | AC | 79 ms
38,348 KB |
| testcase_02 | AC | 74 ms
38,560 KB |
| testcase_03 | AC | 167 ms
43,400 KB |
| testcase_04 | AC | 112 ms
41,428 KB |
| testcase_05 | AC | 116 ms
41,652 KB |
| testcase_06 | AC | 214 ms
44,644 KB |
| testcase_07 | AC | 71 ms
38,408 KB |
| testcase_08 | AC | 287 ms
45,784 KB |
| testcase_09 | AC | 281 ms
45,588 KB |
| testcase_10 | AC | 255 ms
45,488 KB |
| testcase_11 | AC | 79 ms
38,708 KB |
| testcase_12 | AC | 194 ms
43,864 KB |
| testcase_13 | AC | 194 ms
43,952 KB |
| testcase_14 | AC | 282 ms
45,596 KB |
| testcase_15 | AC | 157 ms
43,588 KB |
| testcase_16 | AC | 76 ms
38,712 KB |
| testcase_17 | AC | 224 ms
45,460 KB |
| testcase_18 | AC | 80 ms
38,424 KB |
| testcase_19 | AC | 99 ms
41,300 KB |
| testcase_20 | AC | 258 ms
44,000 KB |
| testcase_21 | AC | 84 ms
38,644 KB |
| testcase_22 | AC | 123 ms
41,804 KB |
| testcase_23 | AC | 307 ms
45,732 KB |
| testcase_24 | AC | 294 ms
45,720 KB |
| testcase_25 | AC | 291 ms
43,876 KB |
| testcase_26 | AC | 221 ms
43,816 KB |
| testcase_27 | AC | 256 ms
45,572 KB |
| testcase_28 | AC | 143 ms
45,448 KB |
| testcase_29 | AC | 70 ms
38,584 KB |
ソースコード
package contest220311;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.Queue;
import java.util.function.IntUnaryOperator;
import java.util.function.LongUnaryOperator;
public class F {
InputStream is;
FastWriter out;
String INPUT = "";
public static final int mod = 998244353;
public void solve()
{
char[] s = ns().toCharArray();
int n = s.length;
int K = ni();
long[][] dp = new long[n/2+1][n/2+1]; // ochange, cchange, height
dp[0][0] = 1;
for(char c : s){
long[][] ndp = new long[n/2+1][n/2+1]; // ochange, cchange, height
for(int oc = 0;oc <= n/2;oc++){
for(int h = 0;h <= n/2;h++){
if(dp[oc][h] == 0)continue;
if(c == '('){
if(h+1 <= n/2){
ndp[oc][h+1] += dp[oc][h];
if(ndp[oc][h+1] >= mod)ndp[oc][h+1] -= mod;
}
if(h-1 >= 0 && oc+1 <= n/2){
ndp[oc+1][h-1] += dp[oc][h];
if(ndp[oc+1][h-1] >= mod)ndp[oc+1][h-1] -= mod;
}
}else{
if(h-1 >= 0){
ndp[oc][h-1] += dp[oc][h];
if(ndp[oc][h-1] >= mod)ndp[oc][h-1] -= mod;
}
if(h+1 <= n/2){
ndp[oc][h+1] += dp[oc][h];
if(ndp[oc][h+1] >= mod)ndp[oc][h+1] -= mod;
}
}
}
}
dp = ndp;
}
long ans = 0;
int[][] M = new int[n/2+1][n/2+1];
for(int i = 0;i <= n/2;i++){
if(i+1 <= n/2)M[i+1][i] += (n/2-i)*(n/2-i);
if(i-1 >= 0)M[i-1][i] += i*i;
M[i][i] += n*(n-1)/2 - i*i - (n/2-i)*(n/2-i);
}
int[] v = new int[n/2+1];
v[0] = 1;
v = pow(M, v, K);
long[][] C = new long[300 + 1][300 + 1];
for (int i = 0; i <= 300; i++) {
C[i][0] = 1;
for (int j = 1; j <= i; j++) {
C[i][j] = C[i - 1][j - 1] + C[i - 1][j];
if (C[i][j] >= mod) C[i][j] -= mod;
}
}
for(int i = 0;i <= n/2;i++){
long u = invl(C[n/2][i], mod);
u = u * u % mod;
ans += v[i] * u % mod * dp[i][0];
ans %= mod;
}
out.println(ans);
}
public static long invl(long a, long mod) {
long b = mod;
long p = 1, q = 0;
while (b > 0) {
long c = a / b;
long d;
d = a;
a = b;
b = d % b;
d = p;
p = q;
q = d - c * q;
}
return p < 0 ? p + mod : p;
}
///////// begin
public static final long m2 = (long)mod*mod;
public static final long BIG = 8L*m2;
// A^e*v
public static int[] pow(int[][] A, int[] v, long e)
{
for(int i = 0;i < v.length;i++){
if(v[i] >= mod)v[i] %= mod;
}
int[][] MUL = A;
for(;e > 0;e>>>=1) {
if((e&1)==1)v = mul(MUL, v);
MUL = p2(MUL);
}
return v;
}
// int matrix*int vector
public static int[] mul(int[][] A, int[] v)
{
int m = A.length;
int n = v.length;
int[] w = new int[m];
for(int i = 0;i < m;i++){
long sum = 0;
for(int k = 0;k < n;k++){
sum += (long)A[i][k] * v[k];
if(sum >= BIG)sum -= BIG;
}
w[i] = (int)(sum % mod);
}
return w;
}
// int matrix^2 (be careful about negative value)
public static int[][] p2(int[][] A)
{
int n = A.length;
int[][] C = new int[n][n];
for(int i = 0;i < n;i++){
long[] sum = new long[n];
for(int k = 0;k < n;k++){
for(int j = 0;j < n;j++){
sum[j] += (long)A[i][k] * A[k][j];
if(sum[j] >= BIG)sum[j] -= BIG;
}
}
for(int j = 0;j < n;j++){
C[i][j] = (int)(sum[j] % mod);
}
}
return C;
}
public static void main(String[] args) {
new F().run();
}
public void run()
{
long S = System.currentTimeMillis();
is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
out = new FastWriter(System.out);
solve();
out.flush();
long G = System.currentTimeMillis();
tr(G-S+"ms");
// Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
// @Override
// public void run() {
// long s = System.currentTimeMillis();
// solve();
// out.flush();
// if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
// }
// };
// t.start();
// t.join();
}
private boolean eof()
{
if(lenbuf == -1)return true;
int lptr = ptrbuf;
while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;
try {
is.mark(1000);
while(true){
int b = is.read();
if(b == -1){
is.reset();
return true;
}else if(!isSpaceChar(b)){
is.reset();
return false;
}
}
} catch (IOException e) {
return true;
}
}
private final byte[] inbuf = new byte[1024];
public int lenbuf = 0, ptrbuf = 0;
private int readByte()
{
if(lenbuf == -1)throw new InputMismatchException();
if(ptrbuf >= lenbuf){
ptrbuf = 0;
try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
if(lenbuf <= 0)return -1;
}
return inbuf[ptrbuf++];
}
private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
// private boolean isSpaceChar(int c) { return !(c >= 32 && c <= 126); }
private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
private double nd() { return Double.parseDouble(ns()); }
private char nc() { return (char)skip(); }
private String ns()
{
int b = skip();
StringBuilder sb = new StringBuilder();
while(!(isSpaceChar(b))){
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
private char[] ns(int n)
{
char[] buf = new char[n];
int b = skip(), p = 0;
while(p < n && !(isSpaceChar(b))){
buf[p++] = (char)b;
b = readByte();
}
return n == p ? buf : Arrays.copyOf(buf, p);
}
private char[][] nm(int n, int m)
{
char[][] map = new char[n][];
for(int i = 0;i < n;i++)map[i] = ns(m);
return map;
}
private int[] na(int n)
{
int[] a = new int[n];
for(int i = 0;i < n;i++)a[i] = ni();
return a;
}
private long[] nal(int n)
{
long[] a = new long[n];
for(int i = 0;i < n;i++)a[i] = nl();
return a;
}
private int ni()
{
int num = 0, b;
boolean minus = false;
while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
if(b == '-'){
minus = true;
b = readByte();
}
while(true){
if(b >= '0' && b <= '9'){
num = num * 10 + (b - '0');
}else{
return minus ? -num : num;
}
b = readByte();
}
}
private long nl()
{
long num = 0;
int b;
boolean minus = false;
while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
if(b == '-'){
minus = true;
b = readByte();
}
while(true){
if(b >= '0' && b <= '9'){
num = num * 10 + (b - '0');
}else{
return minus ? -num : num;
}
b = readByte();
}
}
public static class FastWriter
{
private static final int BUF_SIZE = 1<<13;
private final byte[] buf = new byte[BUF_SIZE];
private final OutputStream out;
private int ptr = 0;
private FastWriter(){out = null;}
public FastWriter(OutputStream os)
{
this.out = os;
}
public FastWriter(String path)
{
try {
this.out = new FileOutputStream(path);
} catch (FileNotFoundException e) {
throw new RuntimeException("FastWriter");
}
}
public FastWriter write(byte b)
{
buf[ptr++] = b;
if(ptr == BUF_SIZE)innerflush();
return this;
}
public FastWriter write(char c)
{
return write((byte)c);
}
public FastWriter write(char[] s)
{
for(char c : s){
buf[ptr++] = (byte)c;
if(ptr == BUF_SIZE)innerflush();
}
return this;
}
public FastWriter write(String s)
{
s.chars().forEach(c -> {
buf[ptr++] = (byte)c;
if(ptr == BUF_SIZE)innerflush();
});
return this;
}
private static int countDigits(int l) {
if (l >= 1000000000) return 10;
if (l >= 100000000) return 9;
if (l >= 10000000) return 8;
if (l >= 1000000) return 7;
if (l >= 100000) return 6;
if (l >= 10000) return 5;
if (l >= 1000) return 4;
if (l >= 100) return 3;
if (l >= 10) return 2;
return 1;
}
public FastWriter write(int x)
{
if(x == Integer.MIN_VALUE){
return write((long)x);
}
if(ptr + 12 >= BUF_SIZE)innerflush();
if(x < 0){
write((byte)'-');
x = -x;
}
int d = countDigits(x);
for(int i = ptr + d - 1;i >= ptr;i--){
buf[i] = (byte)('0'+x%10);
x /= 10;
}
ptr += d;
return this;
}
private static int countDigits(long l) {
if (l >= 1000000000000000000L) return 19;
if (l >= 100000000000000000L) return 18;
if (l >= 10000000000000000L) return 17;
if (l >= 1000000000000000L) return 16;
if (l >= 100000000000000L) return 15;
if (l >= 10000000000000L) return 14;
if (l >= 1000000000000L) return 13;
if (l >= 100000000000L) return 12;
if (l >= 10000000000L) return 11;
if (l >= 1000000000L) return 10;
if (l >= 100000000L) return 9;
if (l >= 10000000L) return 8;
if (l >= 1000000L) return 7;
if (l >= 100000L) return 6;
if (l >= 10000L) return 5;
if (l >= 1000L) return 4;
if (l >= 100L) return 3;
if (l >= 10L) return 2;
return 1;
}
public FastWriter write(long x)
{
if(x == Long.MIN_VALUE){
return write("" + x);
}
if(ptr + 21 >= BUF_SIZE)innerflush();
if(x < 0){
write((byte)'-');
x = -x;
}
int d = countDigits(x);
for(int i = ptr + d - 1;i >= ptr;i--){
buf[i] = (byte)('0'+x%10);
x /= 10;
}
ptr += d;
return this;
}
public FastWriter write(double x, int precision)
{
if(x < 0){
write('-');
x = -x;
}
x += Math.pow(10, -precision)/2;
// if(x < 0){ x = 0; }
write((long)x).write(".");
x -= (long)x;
for(int i = 0;i < precision;i++){
x *= 10;
write((char)('0'+(int)x));
x -= (int)x;
}
return this;
}
public FastWriter writeln(char c){ return write(c).writeln(); }
public FastWriter writeln(int x){ return write(x).writeln(); }
public FastWriter writeln(long x){ return write(x).writeln(); }
public FastWriter writeln(double x, int precision){ return write(x, precision).writeln(); }
public FastWriter write(int... xs)
{
boolean first = true;
for(int x : xs) {
if (!first) write(' ');
first = false;
write(x);
}
return this;
}
public FastWriter write(long... xs)
{
boolean first = true;
for(long x : xs) {
if (!first) write(' ');
first = false;
write(x);
}
return this;
}
public FastWriter write(IntUnaryOperator f, int... xs)
{
boolean first = true;
for(int x : xs) {
if (!first) write(' ');
first = false;
write(f.applyAsInt(x));
}
return this;
}
public FastWriter write(LongUnaryOperator f, long... xs)
{
boolean first = true;
for(long x : xs) {
if (!first) write(' ');
first = false;
write(f.applyAsLong(x));
}
return this;
}
public FastWriter writeln()
{
return write((byte)'\n');
}
public FastWriter writeln(int... xs) { return write(xs).writeln(); }
public FastWriter writeln(long... xs) { return write(xs).writeln(); }
public FastWriter writeln(IntUnaryOperator f, int... xs) { return write(f, xs).writeln(); }
public FastWriter writeln(LongUnaryOperator f, long... xs) { return write(f, xs).writeln(); }
public FastWriter writeln(char[] line) { return write(line).writeln(); }
public FastWriter writeln(char[]... map) { for(char[] line : map)write(line).writeln();return this; }
public FastWriter writeln(String s) { return write(s).writeln(); }
private void innerflush()
{
try {
out.write(buf, 0, ptr);
ptr = 0;
} catch (IOException e) {
throw new RuntimeException("innerflush");
}
}
public void flush()
{
innerflush();
try {
out.flush();
} catch (IOException e) {
throw new RuntimeException("flush");
}
}
public FastWriter print(byte b) { return write(b); }
public FastWriter print(char c) { return write(c); }
public FastWriter print(char[] s) { return write(s); }
public FastWriter print(String s) { return write(s); }
public FastWriter print(int x) { return write(x); }
public FastWriter print(long x) { return write(x); }
public FastWriter print(double x, int precision) { return write(x, precision); }
public FastWriter println(char c){ return writeln(c); }
public FastWriter println(int x){ return writeln(x); }
public FastWriter println(long x){ return writeln(x); }
public FastWriter println(double x, int precision){ return writeln(x, precision); }
public FastWriter print(int... xs) { return write(xs); }
public FastWriter print(long... xs) { return write(xs); }
public FastWriter print(IntUnaryOperator f, int... xs) { return write(f, xs); }
public FastWriter print(LongUnaryOperator f, long... xs) { return write(f, xs); }
public FastWriter println(int... xs) { return writeln(xs); }
public FastWriter println(long... xs) { return writeln(xs); }
public FastWriter println(IntUnaryOperator f, int... xs) { return writeln(f, xs); }
public FastWriter println(LongUnaryOperator f, long... xs) { return writeln(f, xs); }
public FastWriter println(char[] line) { return writeln(line); }
public FastWriter println(char[]... map) { return writeln(map); }
public FastWriter println(String s) { return writeln(s); }
public FastWriter println() { return writeln(); }
}
public static void trnz(int... o)
{
for(int i = 0;i < o.length;i++)if(o[i] != 0)System.out.print(i+":"+o[i]+" ");
System.out.println();
}
// print ids which are 1
public static void trt(long... o)
{
Queue<Integer> stands = new ArrayDeque<>();
for(int i = 0;i < o.length;i++){
for(long x = o[i];x != 0;x &= x-1)stands.add(i<<6|Long.numberOfTrailingZeros(x));
}
System.out.println(stands);
}
public static void tf(boolean... r)
{
for(boolean x : r)System.out.print(x?'#':'.');
System.out.println();
}
public static void tf(boolean[]... b)
{
for(boolean[] r : b) {
for(boolean x : r)System.out.print(x?'#':'.');
System.out.println();
}
System.out.println();
}
public void tf(long[]... b)
{
if(INPUT.length() != 0) {
for (long[] r : b) {
for (long x : r) {
for (int i = 0; i < 64; i++) {
System.out.print(x << ~i < 0 ? '#' : '.');
}
}
System.out.println();
}
System.out.println();
}
}
public void tf(long... b)
{
if(INPUT.length() != 0) {
for (long x : b) {
for (int i = 0; i < 64; i++) {
System.out.print(x << ~i < 0 ? '#' : '.');
}
}
System.out.println();
}
}
private void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}