刘木生

111

#include <iostream>
using namespace std;

string s;
char arr[6] = {};
bool test(char a){
    if (a == 'a' || a == 'e' || a == 'i' || a == 'o' || a == 'u')
        return true;
    return false;
}
int main (){
    cin >> s;
    for (int i = 0; i < s.size(); i ++){
        if (test(s[i]))
            cout << s[i];
    }
    return 0;
}
第 2题题目较乱，
说是要题目自己的函数，最后发下截图。
现在我先不管要求，自己先照着输出先写了
#include <iostream>
using namespace std;

int x, arr[100005], ans[10];
string s[10] = {"0", "0 -  24 ","25 - 49 ","50 - 74 ","75 - 99 ","100 - 124 ","125 - 149 ","150 - 174 ","175 - 200 "};
int main (){
    freopen("testScore.txt","r",stdin);
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int cnt = 1;
    while(cin >> x){
        arr[cnt ++] = x;
    }
    for (int i = 1; i <= 8; i++)
        ans[i] = 0;
    for (int i = 1; i < cnt; i ++){
        if(arr[i] >= 0 && arr[i] <= 24)ans[1] ++;
        if (arr[i] >= 25 && arr[i] <= 49) ans[2] ++;
        if (arr[i] >= 50 && arr[i] <= 74) ans[3] ++;
        if (arr[i] >= 75 && arr[i] <= 99) ans[4] ++;
        if (arr[i] >= 100 && arr[i] <= 124) ans[5] ++;
        if (arr[i] >= 125 && arr[i] <= 149) ans[6] ++;
        if (arr[i] >= 150 && arr[i] <= 174) ans[7] ++;
        if (arr[i] >= 175 && arr[i] <= 200) ans[8] ++;
    }
    for (int i = 1; i <= 8; i ++){
        cout << s[i] << ans[i] << '\n';
    }
    return 0;
}


第三题
题中说a,b之间，并不知道是闭区间还是开区间，代码写的是前闭后闭
#include <iostream>
using namespace std;

long long a, b, ans = 0;

int main (){
    cin >> a >> b;
    for (int i = a; i <= b; i ++){
        if (i % 2) ans += (i * i); 
    }
    cout << ans;
    return 0;
}