21 蓝桥杯

#include<iostream>
using namespace std;
#include<string>
string str;
int main()
{
cin >> str;
for (int i = 0;i < str.length();i++)
{
int x = (int)str[i];
if (x >= 49 && x <= 57)
{
x -= 49;
for (int j = 1;j <= x;j++)
{
cout << str[i - 1];
}
}
else
{
cout << str[i];
}
}
return 0;
}

 

#include<iostream>
using namespace std;
#include<string>
string str;
int main()
{
long long a, b, n;
cin >> a >> b >> n;
long long week = a * 5 + b * 2;
long long ans = 0;
ans = n / week;
ans *= 7;
n %= week;
int flag = 0;
while (n > 0)
{
flag++;
ans++;
if (flag <= 5)
{
n -= a;
}
else
{
n -= b;
}
}
cout << ans << endl;
return 0;
}

 

#include<iostream>
using namespace std;
#include<cmath>
#include<algorithm>
int main()
{
double n;

cin >> n;
int nn = n;
int ans = 0;
for (int i = 1;i < n;i++)
{
int x = i * i;
x %= nn;
if ( x< n / 2)
{
ans++;
}
}
cout << ans << endl;
return 0;
}

 

#include<iostream>
using namespace std;
#include<cmath>
#include<algorithm>
int main()
{
char ch1, ch2, ch3, ch4;
int cnt = 0;
for (int i = 1;i <= 5;i++)
{
cin >> ch1 >> ch2 >> ch3 >> ch4;
if (ch1 == ch3 && (int)ch4 - (int)ch2 == 1)
{
cnt++;
}
}
cout << cnt << endl;
return 0;
}

#include<iostream>
using namespace std;
#include<cmath>
#include<algorithm>
#include<iomanip>
int main()
{
int n;
cin >> n;
double d = 0;
double maxx = -1;
double minn = 101;
for (int i = 1;i <= n;i++)
{
double x;
cin >> x;
maxx = max(maxx, x);
minn = min(minn,x);
d += x;
}
cout << maxx << endl;
cout << minn << endl;
cout << fixed << setprecision(2) << d / n << endl;
return 0;
}

 

#include<iostream>
using namespace std;
#include<string>
int main()
{
char c1, c2, c3, c4, c5;
cin >> c1 >> c2 >> c3 >> c4 >> c5;
string s;
s.resize(3);
s[0] = c1;
s[1] = c2;
s[2] = c3;
if (s == "Jan")
{
cout << 1;
}
else if (s == "Feb")
{
cout << 2;
}
else if (s == "Mar")
{
cout << 3;
}
else if (s == "Apr")
{
cout << 4;
}
else if (s == "May")
{
cout << 5;
}
else if (s == "Jun")
{
cout << 6;
}
else if (s == "Jul")
{
cout << 7;
}
else if (s == "Aug")
{
cout << 8;
}
else if (s == "Sep")
{
cout << 9;
}
else if (s == "Oct")
{
cout << 10;
}
else if (s == "Nov")
{
cout << 11;
}
else if (s == "Dec")
{
cout << 12;
}
cout << " ";
int x = 10 * ((int)(c4 - 48)) + (int)(c5 - 48);
cout << x;
return 0;
}

 

#include<iostream>
using namespace std;
#include<string>
int main()
{
string str;
cin >> str;
for (int i = 0;i < str.length();i++)
{
if ((int)(str[i] >= 97))
{
cout << char(str[i] - 32);
}
else
{
cout << str[i];
}
}
return 0;
}

 

#include<iostream>
using namespace std;
#include<string>
int main()
{
long long n;
cin >> n;
while (n != 0)
{
cout << n << " ";
n /= 2;
}
return 0;
}

 

 

 

原文地址：https://blog.csdn.net/weixin_72770922/article/details/137237045

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