腾讯-客户端-第三次笔试（1，1，1，1，0.4）
希望能过笔试吧，第五道题FFT最远距离求代码。
其他四道代码奉上。
其他四道代码奉上。
第一道：企鹅王国的电话号码
#include <iostream>
#include <string>
#include <algorithm>
using namespace std;
bool isTrue(vector<char> s, int n){
for (int i = 0; i < n; i++){
if (s[i] == '8' && n - i >= 11)
return true;
else{
continue;
}
}
return false;
}
int main(){
int t;
cin >> t;
for (int i = 0; i < t; i++){
int n;
cin >> n;
vector<char> s(n);
for (int i = 0; i < n ;i++)
cin >> s[i];
if (n < 11){
cout << "NO" << endl;
}
else{
if (isTrue(s, n))
cout << "YES" << endl;
else
cout << "NO" << endl;
}
}
//system("Pause");
return 0;
} 第二道：使用红绿蓝，粉刷房屋
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int minValue(vector<vector<int>>& nums, int n){
if (n <= 0 || nums.empty() || nums[0].empty())
return 0;
vector<vector<int>> dp(n, vector<int>(3, 0));
dp[0][0] = nums[0][0];
dp[0][1] = nums[0][1];
dp[0][2] = nums[0][2];
for (int i = 1; i < dp.size(); ++i){
dp[i][0] = min(dp[i - 1][1] + nums[i][0], dp[i - 1][2] + nums[i][0]);
dp[i][1] = min(dp[i - 1][0] + nums[i][1], dp[i - 1][2] + nums[i][1]);
dp[i][2] = min(dp[i - 1][0] + nums[i][2], dp[i - 1][1] + nums[i][2]);
}
return min(min(dp[n - 1][0], dp[n - 1][1]), dp[n - 1][2]);
}
int main(){
int n;
cin >> n;
vector <vector<int>> nums(n, vector<int>(3, 0));
for (int i = 0; i < n; i++){
cin >> nums[i][0];
cin >> nums[i][1];
cin >> nums[i][2];
}
cout << minValue(nums, n) << endl;
//system("Pause");
return 0;
} 第三道：排成圆圈，身高的最大差异最小
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
int n;
cin >> n;
vector<int> nums(n);
for (int i = 0; i < n; i++)
cin >> nums[i];
sort(nums.begin(), nums.end());
vector<int>res;
if (n % 2 == 0){
for (int i = 0; i < n; i += 2){
res.push_back(nums[i]);
}
for (int i = n - 1; i > 0; i -= 2){
res.push_back(nums[i]);
}
for (int i = 0; i < n; i++){
cout << res[i];
i == n - 1 ? cout << endl : cout << " ";
}
}
else{
for (int i = 0; i < n; i += 2){
res.push_back(nums[i]);
}
for (int i = n - 2; i > 0; i -= 2){
res.push_back(nums[i]);
}
for (int i = 0; i < n; i++){
cout << res[i];
i == n - 1 ? cout << endl : cout << " ";
}
}
//system("Pause");
return 0;
} 第四道：木板刷漆
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
int n;
cin >> n;
vector<int> nums(n);
for (int i = 0; i < n; i++)
cin >> nums[i];
vector<int> temp(n);
temp[0] = 0;
int count = 0;
for (int i = 1; i < n; i++){
temp[i] = nums[i] - nums[i - 1];
if (temp[i] != 0)
count++;
}
count + 1 <= n ? cout << count + 1 << endl : cout << n << endl;
//system("Pause");
return 0;
} 
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