結果
問題 | No.49 算数の宿題 |
ユーザー |
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提出日時 | 2015-12-19 18:49:39 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 57 ms / 5,000 ms |
コード長 | 4,405 bytes |
コンパイル時間 | 2,926 ms |
コンパイル使用メモリ | 78,628 KB |
実行使用メモリ | 36,956 KB |
最終ジャッジ日時 | 2024-12-23 01:47:47 |
合計ジャッジ時間 | 3,792 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 10 |
ソースコード
import java.util.*;import java.io.*;public class Main{static final Reader sc = new Reader();static final PrintWriter out = new PrintWriter(System.out,false);public static void main(String[] args) throws Exception {String str = sc.next();int s = 0;int ans = 0;boolean judge = true;for(int i=0;i<str.length();i++){if(str.charAt(i)=='*'){int x = 0;for(int j=s;j<i;j++){x += ((int)str.charAt(j)-(int)'0')*(int)Math.pow(10,i-j-1);}if(judge){ans += x;}else{ans *= x;}judge = true;s = i+1;}else if(str.charAt(i)=='+'){int x = 0;for(int j=s;j<i;j++){x += ((int)str.charAt(j)-(int)'0')*(int)Math.pow(10,i-j-1);}if(judge){ans += x;}else{ans *= x;}judge = false;s = i+1;}if(i+1==str.length()){int x = 0;for(int j=s;j<str.length();j++){x += ((int)str.charAt(j)-(int)'0')*(int)Math.pow(10,str.length()-1-j);}if(judge){ans += x;}else{ans *= x;}}}out.println(ans);out.flush();sc.close();out.close();}static void trace(Object... o) { System.out.println(Arrays.deepToString(o));}}class Reader {private final InputStream in;private final byte[] buf = new byte[1024];private int ptr = 0;private int buflen = 0;public Reader() { this(System.in);}public Reader(InputStream source) { this.in = source;}private boolean hasNextByte() {if (ptr < buflen) return true;ptr = 0;try{buflen = in.read(buf);}catch (IOException e) {e.printStackTrace();}if (buflen <= 0) return false;return true;}private int readByte() { if (hasNextByte()) return buf[ptr++]; else return -1;}private boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}private void skip() { while(hasNextByte() && !isPrintableChar(buf[ptr])) ptr++;}public boolean hasNext() {skip(); 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();boolean minus = false;long num = readByte();if(num == '-'){num = 0;minus = true;}else if (num < '0' || '9' < num){throw new NumberFormatException();}else{num -= '0';}while(true){int b = readByte();if('0' <= b && b <= '9')num = num * 10 + (b - '0');else if(b == -1 || !isPrintableChar(b))return minus ? -num : num;elsethrow new NoSuchElementException();}}public int nextInt() {long num = nextLong();if (num < Integer.MIN_VALUE || Integer.MAX_VALUE < num)throw new NumberFormatException();return (int)num;}public double nextDouble() {return Double.parseDouble(next());}public char nextChar() {if (!hasNext()) throw new NoSuchElementException();return (char)readByte();}public String nextLine() {while (hasNextByte() && (buf[ptr] == '\n' || buf[ptr] == '\r')) ptr++;if (!hasNextByte()) throw new NoSuchElementException();StringBuilder sb = new StringBuilder();int b = readByte();while (b != '\n' && b != '\r') {sb.appendCodePoint(b);b = readByte();}return sb.toString();}public int[] nextIntArray(int n) {int[] res = new int[n];for (int i=0; i<n; i++) res[i] = nextInt();return res;}public char[] nextCharArray(int n) {char[] res = new char[n];for (int i=0; i<n; i++) res[i] = nextChar();return res;}public void close() {try{ in.close();}catch(IOException e){ e.printStackTrace();}};}