結果

問題 No.1120 Strange Teacher
ユーザー OlandOland
提出日時 2020-07-23 11:31:35
言語 Java21
(openjdk 21)
結果
AC  
実行時間 193 ms / 1,000 ms
コード長 7,349 bytes
コンパイル時間 2,534 ms
コンパイル使用メモリ 80,112 KB
実行使用メモリ 53,748 KB
最終ジャッジ日時 2024-06-23 17:26:43
合計ジャッジ時間 7,396 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 57 ms
50,664 KB
testcase_01 AC 58 ms
50,412 KB
testcase_02 AC 79 ms
51,012 KB
testcase_03 AC 100 ms
52,300 KB
testcase_04 AC 182 ms
53,696 KB
testcase_05 AC 180 ms
53,656 KB
testcase_06 AC 180 ms
53,480 KB
testcase_07 AC 186 ms
53,644 KB
testcase_08 AC 182 ms
53,380 KB
testcase_09 AC 54 ms
50,204 KB
testcase_10 AC 174 ms
53,436 KB
testcase_11 AC 174 ms
53,536 KB
testcase_12 AC 180 ms
53,696 KB
testcase_13 AC 182 ms
53,628 KB
testcase_14 AC 170 ms
53,748 KB
testcase_15 AC 175 ms
53,556 KB
testcase_16 AC 180 ms
53,652 KB
testcase_17 AC 179 ms
53,576 KB
testcase_18 AC 53 ms
50,532 KB
testcase_19 AC 193 ms
53,572 KB
testcase_20 AC 52 ms
50,164 KB
testcase_21 AC 52 ms
50,540 KB
testcase_22 AC 53 ms
50,564 KB
testcase_23 AC 53 ms
50,340 KB
testcase_24 AC 177 ms
53,700 KB
testcase_25 AC 54 ms
50,560 KB
testcase_26 AC 54 ms
50,568 KB
testcase_27 AC 53 ms
50,600 KB
testcase_28 AC 54 ms
50,284 KB
testcase_29 AC 53 ms
50,460 KB
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ソースコード

diff # 

import java.io.*;
import java.math.BigDecimal;
import java.util.*;

@SuppressWarnings("unused")
public class Main {
    FastScanner in;
    PrintWriter out;
    final static int MOD = (int)1e9+7;
    void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));}
    
    void solve(){
        out.println(task());
    }
    
    long task(){
       int N = in.nextInt();
       long[] A = in.nextLongArray(N), B = in.nextLongArray(N);
       
       if(N == 2){
           if(A[0] - B[0] == B[1] - A[1]){
               return Math.abs(A[0] - B[0]);
           }else{
               return -1;
           }
       }
       
       long sumA = 0, sumB = 0;
       for(int i = 0; i < N; i++){
           sumA += A[i];
           sumB += B[i];
       }
       if(sumB > sumA || (sumA - sumB) % (N - 2) != 0){
           return -1;
       }
       long K = (sumA - sumB) / (N - 2);
       
       long cnt = 0;
       for(int i = 0; i < N; i++){
           A[i] -= K;
           if(A[i] > B[i] || (B[i] - A[i]) % 2 != 0){
                return -1;
           }
           cnt += (B[i] - A[i]) / 2;
       }
       
       if(cnt == K) return K;
       else return -1;
    }
    
    public static void main(String[] args) {
        new Main().m();
    }
    
    private void m() {
        in = new FastScanner(System.in);
        out = new PrintWriter(System.out);
        /*
        try {
            String path = "input.txt";
            out = new PrintWriter(new BufferedWriter(new FileWriter(new File(path))));
        }catch (IOException e){
            e.printStackTrace();
        }
        */
        solve();
        out.flush();
        in.close();
        out.close();
    }
    
    static class FastScanner {
        private Reader input;
        
        public FastScanner() {this(System.in);}
        public FastScanner(InputStream stream) {this.input = new BufferedReader(new InputStreamReader(stream));}
        public void close() {
            try {
                this.input.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        
        public int nextInt() {
            long nl = nextLong();
            if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
            return (int) nl;
        }
        
        public long nextLong() {
            try {
                int sign = 1;
                int b = input.read();
                while ((b < '0' || '9' < b) && b != '-' && b != '+') {
                    b = input.read();
                }
                if (b == '-') {
                    sign = -1;
                    b = input.read();
                } else if (b == '+') {
                    b = input.read();
                }
                long ret = b - '0';
                while (true) {
                    b = input.read();
                    if (b < '0' || '9' < b) return ret * sign;
                    ret *= 10;
                    ret += b - '0';
                }
            } catch (IOException e) {
                e.printStackTrace();
                return -1;
            }
        }
        
        public double nextDouble() {
            try {
                double sign = 1;
                int b = input.read();
                while ((b < '0' || '9' < b) && b != '-' && b != '+') {
                    b = input.read();
                }
                if (b == '-') {
                    sign = -1;
                    b = input.read();
                } else if (b == '+') {
                    b = input.read();
                }
                double ret = b - '0';
                while (true) {
                    b = input.read();
                    if (b < '0' || '9' < b) break;
                    ret *= 10;
                    ret += b - '0';
                }
                if (b != '.') return sign * ret;
                double div = 1;
                b = input.read();
                while ('0' <= b && b <= '9') {
                    ret *= 10;
                    ret += b - '0';
                    div *= 10;
                    b = input.read();
                }
                return sign * ret / div;
            } catch (IOException e) {
                e.printStackTrace();
                return Double.NaN;
            }
        }
        
        public char nextChar() {
            try {
                int b = input.read();
                while (Character.isWhitespace(b)) {
                    b = input.read();
                }
                return (char) b;
            } catch (IOException e) {
                e.printStackTrace();
                return 0;
            }
        }
        
        public String nextStr() {
            try {
                StringBuilder sb = new StringBuilder();
                int b = input.read();
                while (Character.isWhitespace(b)) {
                    b = input.read();
                }
                while (b != -1 && !Character.isWhitespace(b)) {
                    sb.append((char) b);
                    b = input.read();
                }
                return sb.toString();
            } catch (IOException e) {
                e.printStackTrace();
                return "";
            }
        }
        
        public String nextLine() {
            try {
                StringBuilder sb = new StringBuilder();
                int b = input.read();
                while (b != -1 && b != '\n') {
                    sb.append((char) b);
                    b = input.read();
                }
                return sb.toString();
            } catch (IOException e) {
                e.printStackTrace();
                return "";
            }
        }
        
        public int[] nextIntArray(int n) {
            int[] res = new int[n];
            for (int i = 0; i < n; i++) {
                res[i] = nextInt();
            }
            return res;
        }
        
        public int[] nextIntArrayDec(int n) {
            int[] res = new int[n];
            for (int i = 0; i < n; i++) {
                res[i] = nextInt() - 1;
            }
            return res;
        }
        
        public int[] nextIntArray1Index(int n) {
            int[] res = new int[n + 1];
            for (int i = 0; i < n; i++) {
                res[i + 1] = nextInt();
            }
            return res;
        }
        
        public long[] nextLongArray(int n) {
            long[] res = new long[n];
            for (int i = 0; i < n; i++) {
                res[i] = nextLong();
            }
            return res;
        }
        
        public long[] nextLongArrayDec(int n) {
            long[] res = new long[n];
            for (int i = 0; i < n; i++) {
                res[i] = nextLong() - 1;
            }
            return res;
        }
        
        public long[] nextLongArray1Index(int n) {
            long[] res = new long[n + 1];
            for (int i = 0; i < n; i++) {
                res[i + 1] = nextLong();
            }
            return res;
        }
        
        public double[] nextDoubleArray(int n) {
            double[] res = new double[n];
            for (int i = 0; i < n; i++) {
                res[i] = nextDouble();
            }
            return res;
        }
    }
}
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