- chenkexin2024's blog
11 29题
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chenkexin2024
LV 3
@
2024-11-29 9:20:22
T1
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
int sum=0;
for(int i=1;i<=100;i++)
{
sum+=i;
}
cout<<sum;
return 0;
}
T2
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
for(int i=2;i<=100;i+=2)
{
cout<<i<<' ';
}
return 0;
}
T3
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
int sum1=0,sum2=0;
for(int i=1;i<=100;i++)
{
sum1+=(i%2==1?i:0);
sum2+=(i%2==0?i:0);
}
cout<<sum1<<' '<<sum2;
return 0;
}
T4
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
int n=read();
int ans=1;
for(int i=1;i<=n;i++)
{
ans*=i;
}
write(ans);
return 0;
}
T5
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
int n=read();
double ans=0;
for(int i=1;i<=n;i++)
{
int t=read();
ans+=t;
}
printf("%.2f",ans/n);
return 0;
}
T6
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
int s=0;
for(int i=1;s<=1000;i++)
{
s+=i;
if(s>1000)
{
write(i);
return 0;
}
}
return 0;
}
T7
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
inline int gcd(int a,int b){if(b==0){return a;}return gcd(b,a%b)};
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
int m=read(),n=read();
write(gcd(m,n));
return 0;
}
T8
#include<bits/stdc++.h>
#define int long long
#define debug() cout<<"come here\n"
#define INF 0x3f3f3f3f3f3f3f3f
#define pii pair<int,int>
#define pb push_back
using namespace std;
int qpow(int a,int b,int p){int ret=1;while(b){if(b&1)ret=(ret*a)%p;a=(a*a)%p;b>>=1;}return ret;}
inline int read(){int ret=0,f=1;char ch=getchar();while(ch<'0'||ch>'9')f=(ch=='-'?-1:f),ch=getchar();while(ch>='0'&&ch<='9')ret=(ret<<3)+(ret<<1)+(ch^48),ch=getchar();return ret*f;}
inline void write(int x){if(x<0){putchar('-');write(-x);return ;}if(x>9)write(x/10);putchar((char)(x%10+48));}
inline void writech(int x,char ch){write(x);putchar(ch);}
signed main()
{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
double sum=0;
for(int i=1;;i++)
{
sum+=1.0/i;
if(sum>=5){
write(i);
return 0;
}
}
return 0;
}