Submission #3240674
Source Code Expand
import java.io.IOException; import java.util.NoSuchElementException; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws IOException { try ( BufferedReader reader = new BufferedReader( new InputStreamReader(System.in))) { FastScanner fs = new FastScanner(); final int N = fs.nextInt(); int X = fs.nextInt(); int[] A = new int[N]; for (int i = 0; i < N; i++) A[i] = fs.nextInt(); int cur = 0; int sum = 0; do { if ((X & 1) == 1) sum += A[cur]; X = X >> 1; cur++; } while (0 < X); System.out.println(sum); } } } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; } else { ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } 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; } public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; 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() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next()); } }
Submission Info
Submission Time | |
---|---|
Task | B - 価格の合計 |
User | ShinjiSHIBATA |
Language | Java8 (OpenJDK 1.8.0) |
Score | 100 |
Code Size | 3130 Byte |
Status | AC |
Exec Time | 103 ms |
Memory | 21332 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt |
All | subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_sample01.txt | AC | 68 ms | 20564 KB |
subtask0_sample02.txt | AC | 69 ms | 18388 KB |
subtask0_sample03.txt | AC | 68 ms | 20436 KB |
subtask1_01.txt | AC | 68 ms | 19924 KB |
subtask1_02.txt | AC | 68 ms | 20436 KB |
subtask1_03.txt | AC | 69 ms | 18260 KB |
subtask1_04.txt | AC | 69 ms | 18900 KB |
subtask1_05.txt | AC | 69 ms | 19924 KB |
subtask1_06.txt | AC | 70 ms | 20820 KB |
subtask1_07.txt | AC | 70 ms | 20436 KB |
subtask1_08.txt | AC | 103 ms | 18516 KB |
subtask1_09.txt | AC | 100 ms | 20692 KB |
subtask1_10.txt | AC | 67 ms | 21332 KB |
subtask1_11.txt | AC | 70 ms | 19028 KB |
subtask1_12.txt | AC | 68 ms | 19152 KB |
subtask1_13.txt | AC | 69 ms | 20948 KB |
subtask1_14.txt | AC | 103 ms | 20180 KB |
subtask1_15.txt | AC | 66 ms | 17236 KB |
subtask1_16.txt | AC | 69 ms | 19412 KB |
subtask1_17.txt | AC | 69 ms | 19028 KB |