結果
| 問題 | No.259 セグメントフィッシング+ |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2015-08-01 15:26:38 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 206 ms / 2,000 ms |
| コード長 | 4,197 bytes |
| 記録 | |
| コンパイル時間 | 3,476 ms |
| コンパイル使用メモリ | 85,132 KB |
| 実行使用メモリ | 58,448 KB |
| 最終ジャッジ日時 | 2024-07-18 00:30:34 |
| 合計ジャッジ時間 | 8,514 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 23 |
ソースコード
package q3xx;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;
public class Q396 {
InputStream is;
PrintWriter out;
String INPUT = "";
void solve()
{
int n = ni(), Q = ni();
long[] ft = new long[2*n+1];
long all = 0;
for(int i = 0;i < Q;i++){
char type = nc();
int t = ni(), y = ni(), z = ni();
if(type == 'R'){
int x = (y-t)%(2*n);
if(x < 0)x += 2*n;
addFenwick(ft, x, z);
all += z;
}else if(type == 'L'){
int x = (2*n-1-y-t)%(2*n);
if(x < 0)x += 2*n;
addFenwick(ft, x, z);
all += z;
}else{
long ret = 0;
{
int L = (y-t)%(2*n);
int R = (z-t)%(2*n);
if(L < 0)L += 2*n;
if(R < 0)R += 2*n;
ret += sumFenwick(ft, R-1);
ret -= sumFenwick(ft, L-1);
if(L < R){
}else{
ret += all;
}
}
{
int L = (2*n-1-z-t+1)%(2*n);
int R = (2*n-1-y-t+1)%(2*n);
if(L < 0)L += 2*n;
if(R < 0)R += 2*n;
ret += sumFenwick(ft, R-1);
ret -= sumFenwick(ft, L-1);
if(L < R){
}else{
ret += all;
}
}
out.println(ret);
}
}
}
public static long sumFenwick(long[] ft, int i)
{
long sum = 0;
for(i++;i > 0;i -= i&-i)sum += ft[i];
return sum;
}
public static void addFenwick(long[] ft, int i, long v)
{
if(v == 0)return;
int n = ft.length;
for(i++;i < n;i += i&-i)ft[i] += v;
}
public static long[] restoreFenwick(long[] ft)
{
int n = ft.length-1;
long[] ret = new long[n];
for(int i = 0;i < n;i++)ret[i] = sumFenwick(ft, i);
for(int i = n-1;i >= 1;i--)ret[i] -= ret[i-1];
return ret;
}
void run() throws Exception
{
is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
out = new PrintWriter(System.out);
long s = System.currentTimeMillis();
solve();
out.flush();
if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
}
public static void main(String[] args) throws Exception { new Q396().run(); }
private byte[] inbuf = new byte[1024];
private 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 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))){ // when nextLine, (isSpaceChar(b) && 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 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();
}
}
private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}