提出 #54337150

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ソースコード 拡げる

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 = Integer.parseInt(sc.next());
        int M = Integer.parseInt(sc.next());
        int[] hands = new int[N];
        int handsCount = 0;
        int count = 0;
        for (int i = 0; i < N; i++) {
            int temp = Integer.parseInt(sc.next());
            hands[i] = temp;
            handsCount += temp;
            if (handsCount > M) {
                break;
            }
            count++;
        }
        System.out.println(count);

    }

    public static boolean areCoprime(int a, int b) {
        return gcd(a, b) == 1;
    }

    public static int gcd(int a, int b) {
        while (b != 0) {
            int temp = b;
            b = a % b;
            a = temp;
        }
        return a;
    }

    public static int lcm(int a, int b) {
        return (a * (b / gcd(a, b)));
    }
}

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;
    }

    private void skipUnprintable() {
        while (hasNextByte() && !isPrintableChar(buffer[ptr])) {
            ptr++;

        }
    }

    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();
        }
    }
}

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