做了一下华为机试，代码可能还有些问题，先传上去，第三题会有些问题。第一题
#include<iostream> #include<vector> #include<string> #include<algorithm> using namespace std; int main() { int p1, p2, p3; cin >> p1>>p2>>p3; string str; cin >> str; vector<char>res; for (int i = 0; i < str.size(); i++) { if (str[i] != '-') { res.push_back(str[i]); } else { if (0<i<str.size()-1&&abs(str[i + 1] - str[i - 1]) > 25) { res.push_back(str[i]); } if (0 < i < str.size() - 1 && abs(str[i + 1] - str[i - 1] <= 0)) { res.push_back(str[i]); } int flag = 0; for (int j = str[i - 1] + 1; j < str[i + 1]; j++) { char addNums; switch (p1) { case(1) : addNums = j; break; case(2) : addNums = toupper(j); break; case(3) : addNums = '*'; break; } for (int k = 0; k < p2; k++) { res.push_back(addNums); flag++; } } if (p3 == 2) { int m; m = res.size() - flag; reverse(res.begin() + m , res.begin() + m+flag); } } } for (int i = 0; i < res.size(); i++) { cout << res[i]; } cout << endl; system("pause"); return 0; }
第二题
#include<iostream> #include<string> #include<stack> #include<sstream> #include<vector> #include<stdlib.h> using namespace std; int helper(string &res) { reverse(res.begin(), res.end()); res = res.substr(1, res.size() - 2); istringstream input(res); string result; vector<string> temp; while (input >> result) { temp.push_back(result); } if (temp[0] == "add") return stoi(temp[1]) + stoi(temp[2]); if (temp[0] == "sub") return stoi(temp[1]) - stoi(temp[2]); if (temp[0] == "mul") return stoi(temp[1]) * stoi(temp[2]); if (temp[0] == "div") { if (temp[2] != "0") return stoi(temp[1]) / stoi(temp[2]); else return false; } } int operation(string &nums) { stack<char> st; int tt=0; int len = nums.size(); for (int i = 0; i < len; i++) { st.push(nums[i]); if (st.top() == ')') { //break; string temp = ""; while (st.top() != '(') { temp += st.top(); st.pop(); } temp += st.top(); st.pop(); tt = helper(temp); string ttstr = to_string(tt); for (int i = 0; i < ttstr.size(); i++) { st.push(ttstr[i]); } } } return tt; } int main() { //string input = "(sub (mul (mul 2 4) 4) (div 9 3))"; string input; getline(cin,input); if (input.size() == 0) throw "Error"; int output; output = operation(input); cout << output << endl; system("pause"); return 0; }
第三题
#include<iostream>
#include<string>
#include<sstream>
#include<vector>
using namespace std;
struct PeopleIntroction
{
string name;
string phone;
};
vector<string> peopleTemp(string &p)
{
istringstream input1(p);
vector<string> temp;
string result1;
while (input1 >> result1)
{
temp.push_back(result1);
}
return temp;
}
int main()
{
int nums;
cin >> nums;
const int n = 200;
cin.ignore();
PeopleIntroction people[n];
for (int i = 0; i < nums; i++)
{
getline(cin, people[i].name);
getline(cin, people[i].phone);
}
string want_to_peo;
getline(cin,want_to_peo);
istringstream input(want_to_peo);
vector<string> res;
string result;
while (input >> result)
{
res.push_back(result);
}
if (res.size() == 2)
{
for (int i = 0; i < nums; i++)
{
vector<string> temp;
temp = peopleTemp(people[i].name);
if (res[0] == temp[0] && res[1] == temp[1])
{
cout << people[i].name << "\t" << people[i].phone;
}
temp.clear();
//按照首字母组合
for (int i = 0; i < nums; i++)
{
vector<string> temp;
temp = peopleTemp(people[i].name);
if (res[0][0] == temp[0][0] && res[1][0] == temp[1][0])
{
cout << people[i].name << "\t" << people[i].phone;
}
cout << endl;
temp.clear();
}
}
if (res.size() == 1)
{
for (int i = 0; i < nums; i++)
{
vector<string> temp;
temp = peopleTemp(people[i].name);
if (res[0] == temp[0] || res[0] == temp[1])
{
cout << people[i].name << "\t" << people[i].phone;
}
cout << endl;
temp.clear();
}
}
cout << endl;
system("pause");
return 0;
}