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  • SDNU 1202.找规律

    Description

    Starting from point (0,0) on a plane, we have written all non-negative integers 0, 1, 2,... as shown in the figure. For example, 1, 2, and 3 has been written at points (1,1), (2,0), and (3, 1) respectively and this pattern has continued.

    You are to write a program that reads the coordinates of a point (x, y), and writes the number (if any) that has been written at that point. (x, y) coordinates in the input are in the range 0...1000000.

    Input

    The first line of the input is N, the number of test cases for this problem. In each of the N following lines, there is x, and y representing the coordinates (x, y) of a point.

    Output

    For each point in the input, write the number written at that point or write No Number if there is none.

    Sample Input

    3
    4 2
    6 6
    3 4

    Sample Output

    6
    12
    No Number
    

    Hint

    Source

    Unknown
    #include <cstdio>
    #include <iostream>
    #include <cmath>
    #include <string>
    #include <cstring>
    #include <algorithm>
    #include <queue>
    #include <vector>
    #include <map>
    using namespace std;
    #define ll long long
    
    int n, x, y;
    
    int main()
    {
        while(~scanf("%d", &n))
        {
            for(int i = 0; i<n; i++)
            {
                scanf("%d%d", &x, &y);
                if((x+y)%2 == 0)
                {
                    if((x == y || x-y == 2) && x%2 == 1)printf("%d
    ", x+y-1);
                    else if((x == y || x-y == 2) && x%2 == 0)printf("%d
    ", x+y);
                    else if(x != y || x-y != 2) printf("No Number
    ");
                }
                else
                    printf("No Number
    ");
            }
        }
        return 0;
    }
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  • 原文地址:https://www.cnblogs.com/RootVount/p/10990690.html
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