Submission #2121230
Source Code Expand
import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.InputMismatchException; import java.util.NoSuchElementException; public class Main { static PrintWriter out; static InputReader ir; static void solve() { int n=ir.nextInt(); int k=ir.nextInt(); long[] a=new long[n+2]; for(int i=0;i<n;i++) a[i+1]=ir.nextLong(); for(int i=0;i<=n;i++) a[i+1]+=a[i]; long ret=0; for(int i=0;i<n-k+1;i++) ret+=a[i+k]-a[i]; out.println(ret); } public static void main(String[] args) throws Exception { ir = new InputReader(System.in); out = new PrintWriter(System.out); solve(); out.flush(); } static class InputReader { private InputStream in; private byte[] buffer = new byte[1024]; private int curbuf; private int lenbuf; public InputReader(InputStream in) { this.in = in; this.curbuf = this.lenbuf = 0; } public boolean hasNextByte() { if (curbuf >= lenbuf) { curbuf = 0; try { lenbuf = in.read(buffer); } catch (IOException e) { throw new InputMismatchException(); } if (lenbuf <= 0) return false; } return true; } private int readByte() { if (hasNextByte()) return buffer[curbuf++]; else return -1; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private void skip() { while (hasNextByte() && isSpaceChar(buffer[curbuf])) curbuf++; } public boolean hasNext() { skip(); return hasNextByte(); } public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while (!isSpaceChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public int nextInt() { if (!hasNext()) throw new NoSuchElementException(); int c = readByte(); while (isSpaceChar(c)) c = readByte(); boolean minus = false; if (c == '-') { minus = true; c = readByte(); } int res = 0; do { if (c < '0' || c > '9') throw new InputMismatchException(); res = res * 10 + c - '0'; c = readByte(); } while (!isSpaceChar(c)); return (minus) ? -res : res; } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); int c = readByte(); while (isSpaceChar(c)) c = readByte(); boolean minus = false; if (c == '-') { minus = true; c = readByte(); } long res = 0; do { if (c < '0' || c > '9') throw new InputMismatchException(); res = res * 10 + c - '0'; c = readByte(); } while (!isSpaceChar(c)); return (minus) ? -res : res; } public double nextDouble() { return Double.parseDouble(next()); } public int[] nextIntArray(int n) { int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = nextInt(); return a; } public long[] nextLongArray(int n) { long[] a = new long[n]; for (int i = 0; i < n; i++) a[i] = nextLong(); return a; } public char[][] nextCharMap(int n, int m) { char[][] map = new char[n][m]; for (int i = 0; i < n; i++) map[i] = next().toCharArray(); return map; } } }
Submission Info
Submission Time | |
---|---|
Task | C - 総和 |
User | holeguma |
Language | Java8 (OpenJDK 1.8.0) |
Score | 100 |
Code Size | 3357 Byte |
Status | AC |
Exec Time | 95 ms |
Memory | 22100 KB |
Judge Result
Set Name | sample | subtask1 | subtask2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 50 / 50 | 50 / 50 | ||||||
Status |
|
|
|
Set Name | Test Cases |
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sample | sample01.txt, sample02.txt |
subtask1 | 00.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, sample01.txt, sample02.txt |
subtask2 | 00.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, sample01.txt, sample02.txt, sample01.txt, sample02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00.txt | AC | 69 ms | 20820 KB |
01.txt | AC | 70 ms | 21076 KB |
02.txt | AC | 69 ms | 19540 KB |
03.txt | AC | 80 ms | 18388 KB |
04.txt | AC | 73 ms | 19796 KB |
05.txt | AC | 73 ms | 21588 KB |
06.txt | AC | 82 ms | 18772 KB |
07.txt | AC | 82 ms | 19796 KB |
08.txt | AC | 83 ms | 21332 KB |
09.txt | AC | 75 ms | 21588 KB |
10.txt | AC | 73 ms | 18516 KB |
11.txt | AC | 93 ms | 20052 KB |
12.txt | AC | 90 ms | 19924 KB |
13.txt | AC | 91 ms | 18516 KB |
14.txt | AC | 91 ms | 16596 KB |
15.txt | AC | 90 ms | 21972 KB |
16.txt | AC | 91 ms | 22100 KB |
17.txt | AC | 94 ms | 21460 KB |
18.txt | AC | 85 ms | 18388 KB |
19.txt | AC | 95 ms | 18772 KB |
sample01.txt | AC | 69 ms | 19028 KB |
sample02.txt | AC | 69 ms | 19156 KB |