2017美图点评编程题

第一题

求 子序列中为K的倍数的最长子序列长度,具体描述如下:
这里写图片描述

代码如下,100%通过率

#include <iostream>
#include <string>
#include <sstream>
#include <vector>

using namespace std;

int main()
{
    int N = 0;

    while (cin >> N)
    {
        vector<int > a(N, 0); 
        for (int i = 0 ; i < N ; i++)
        {
            cin >> a[i];
        }

        int K = 0;
        cin >> K;

        if (0 == N || 0 == K)
        {
            printf("0\n");
            continue;
        }

        int out = 0;
        vector<int > tmp(N, 0);
        tmp[0] = a[0];
        if (tmp[0] % K  == 0) out = 1;
        for (int i = 1; i < N ; i++)
        {
            tmp[i] = tmp[i - 1] + a[i];
            if (tmp[i] % K == 0) out = i + 1;
        }

        if (out == N)
        {
            printf("%d\n", out);
            continue;
        }
        for (int cnt = 1; cnt < N ; cnt++)
        {
            for (int i = cnt + out - 1; i < N; i++)
            {
                tmp[i] = tmp[i] - a[cnt - 1];
                if (tmp[i] >= cnt && tmp[i] % K == 0)
                {
                    out = out < i + 1 - cnt ? i + 1 - cnt : out;
                }
            }
        }

        printf("%d\n", out);
    }

    return 0;
}

第二题

分发卷子的,吓唬人的题,具体题目如下:
这里写图片描述

代码如下, 100%通过率:

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <vector>
#include <stack>
#include <map>

using namespace std;

int main()
{
    int N = 0;
    while (cin >> N)
    {
        //vector<int > a(N , 0);
        int max = 0;
        int sum = 0;
        for (int i = 0; i < N ; i++)
        {
            int tmp = 0;
            cin >> tmp;

            sum += tmp;
            max = tmp > max ? tmp : max;
        }

        sum -= max;
        if (sum < max)
        {
            printf("No\n");
        }
        else
        {
            printf("Yes\n");
        }

    }

    return 0;
}

猜你喜欢

转载自blog.csdn.net/qq_28351465/article/details/77753966
今日推荐