欢迎来到尧图网

客户服务 关于我们

您的位置:首页 > 健康 > 美食 > 笔试强训day07

笔试强训day07

2025/6/1 23:30:17 来源:https://blog.csdn.net/2301_79420799/article/details/142096208  浏览:    关键词:笔试强训day07


在字符串中找出连续最长的数字串

#include <bits/stdc++.h>using namespace std;
const int N = 500;
char s[N];
bool check(char c) {return c >= '0' && c <= '9';
}
int main() {scanf("%s", s);int l = -1, r = -1;int n = strlen(s);int left = 0, right = -1;while (left < n) {if (check(s[left])) {int ll = left;while (left < n && check(s[left]))++left;right = left;if (right - ll > r - l) {l = ll, r = right;}}++left;}for (int i = l; i < r; ++i)cout << s[i];return 0;
}


岛屿数量

class Solution {
private:int dx[4] = {1,-1,0,0},dy[4] = {0,0,1,-1};bool vis[210][210]{};int n,m;void dfs(int i,int j,vector<vector<char> >&grid){vis[i][j] = true;for(int k = 0;k<4;++k){int x = i+dx[k],y = j+dy[k];if(x>=0&&x<n&&y>=0&&y<m&&grid[x][y]=='1'&&vis[x][y]==false){dfs(x,y,grid);}}}
public:/*** 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可** 判断岛屿数量* @param grid char字符型vector<vector<>> * @return int整型*/int solve(vector<vector<char> >& grid) {// write code hereint cnt = 0;n = grid.size(),m =grid[0].size();for(int i = 0;i<n;++i){for(int j = 0;j<m;++j){if(grid[i][j] == '1' && vis[i][j]==false){dfs(i,j,grid);++cnt;}}}return cnt;}
};


拼三角

#include <bits/stdc++.h>using namespace std;
const int N = 10;
int arr[N];int main()
{int t;cin>>t;while(t--){for(int i = 0;i<6;++i)cin>>arr[i];sort(arr,arr+6);if(arr[0] + arr[1] > arr[2] && arr[3] + arr[4] > arr[5] ||arr[0] + arr[2] > arr[3] && arr[1] + arr[4] > arr[5] ||arr[0] + arr[3] > arr[4] && arr[1] + arr[2] > arr[5] ||arr[0] + arr[4] > arr[5] && arr[1] + arr[2] > arr[3])cout << "Yes" << endl;else cout<<"No"<<endl;}return 0;
}

热搜词