結果

問題 No.708 （＋ー）の式
ユーザー holeguma
提出日時 2019-07-17 20:51:24
言語 Java
(openjdk 23)
結果
AC  
実行時間 56 ms / 2,000 ms
コード長 3,637 bytes
コンパイル時間 2,925 ms
コンパイル使用メモリ 77,616 KB
実行使用メモリ 36,976 KB
最終ジャッジ日時 2024-12-23 07:27:35
合計ジャッジ時間 4,002 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge1
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ファイルパターン 結果
sample AC * 3
other AC * 12
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;
public class Main {
    static PrintWriter out;
    static InputReader ir;
    static void solve() {
        char[] s = ir.next().toCharArray();
        out.println(calc(s, 0, s.length - 1));
    }
    static int calc(char[] s, int l, int r) {
        int signum = 1;
        int res = 0;
        for (int i = l; i <= r; i++) {
            if (s[i] >= '0' && s[i] <= '9') {
                res += signum * (s[i] - '0');
            } else if (s[i] == '+') {
                signum = 1;
            } else if (s[i] == '-') {
                signum = -1;
            } else if (s[i] == '(') {
                int d = 1;
                int pre = ++i;
                while (d != 0) {
                    if (s[i] == '(')
                        d++;
                    else if (s[i] == ')')
                        d--;
                    i++;
                }
                i -= 2;
                res += signum * calc(s, pre, i++);
            }
        }
        return res;
    }
    public static void main(String[] args) {
        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;
        }
    }
    static void tr(Object... o) {
        out.println(Arrays.deepToString(o));
    }
}
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