C++编程题
C/C++\u7f16\u7a0b\u9898#include
#include
using namespace std;
void ChgTo10(char a[], int x);
int main()
{
int x;
cout << "\u8bf7\u8f93\u5165\u8981\u8f6c\u6362\u7684\u8fdb\u5236x(x\u53ef\u4ee5\u662f16\u548c10\u4ee5\u4e0b\u7684\u6570\u5b57\uff1a" << endl;
cin >> x;
char num[20];
cout << "\u8bf7\u8f93\u5165\u4e00\u4e2a" << x << "\u8fdb\u5236\u7684\u6570\u5b57:" << endl;
cin >> num;
ChgTo10(num, x);
return 0;
}
void ChgTo10(char a[], int x)
{
int len = strlen(a);
int sum = 0;
for (int i = 0; i < len; i++)
{
if(a[i] > '9') // a[i]\u4e0d\u662f\u6570\u5b57
{
if(a[i] > 'Z') // a[i]\u662f\u5c0f\u5199\u5b57\u6bcd
{
sum += (a[i] - 'a' + 10) * pow(x, len - 1 - i);
}
else // a[i]\u662f\u5927\u5199\u5b57\u6bcd
{
sum += (a[i] - 'A' + 10) * pow(x, len - 1 - i);
}
}
else
{
sum += (a[i] - '0') * pow(x, len - 1 - i);
}
}
cout << x << "\u8fdb\u5236\u7684" << a << "\u5bf9\u5e94\u768410\u8fdb\u5236\u6570\u662f\uff1a" << sum << endl;
}
\u770b\u770b c++stl\u5e93 \u8fd9\u4e2a\u624d\u662f\u5173\u952e\u3002 \u7b97\u6cd5\u8981\u7684\u662f\u61c2\u91cc\u9762\u7684\u601d\u60f3\u3002
#include<iostream>using namespace std;
int main()
{
double grade,max=0.0,min=100.0,ave,total=0.0;
int count=0;
cout<<"请输入所有学生的成绩:"<<endl;
while(cin>>grade)
{
if(grade<0)break;
count++;
if(grade>max)max=grade;
if(grade<min)min=grade;
total+=grade;
ave=total/count;
}
cout<<"最高分是:"<<max<<" ,最低分是:"<<min<<" ,平均分是:"<<ave<<endl;
return 0;
}
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
int input = 0;
vector<int> vec;
cin >> input;
while(input != -1)
{
vec.push_back(input);
cin >> input;
}
sort(vec.begin(),vec.end());
cout << "最高:" << vec.end()
<< "\n最低:" << vec.begin() << endl;
long sum = accumulate(vec.begin(),vec.end(),0);
double average = double(sum/vec.size());
cout << "平均值:" << average << endl;
system("pause");
return 0;
}
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