水题 AC代码：

#include<iostream>
using namespace std;
int k,x,s1=0,s5=0,s10=0;
int main(){
	cin>>k;
	for(int i=1;i<=k;i++){
		cin>>x;
		if(x==1)s1++;
		if(x==5)s5++;
		if(x==10)s10++;
	}
	cout<<s1<<endl<<s5<<endl<<s10;
	return 0;
}

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送分

#include <iostream>
using namespace std;
int main()
{
	long a,k,sum1=0,sum5=0,sum10=0;
	cin>>k;
	for(int i=1;i<=k;i++)
	{
		cin>>a;
		if(a==1)
		sum1+=1;
		
		if(a==5)
		sum5+=1;
		
		if(a==10)
		sum10+=1;
		
	}
	cout<<sum1<<endl<<sum5<<endl<<sum10<<endl;
}

#include<iostream>
#include<cstdio>
#include<cstdlib>
int k,n,a,b,c;
using namespace std;
int main()

{
    cin>>k;
    
    for (int i = 1; i <= k; i++)
    {
        cin>>n;
        if (n==1)
        {
            a++;
        }
        
        if (n==5)
        {
            b++;
        }
        if (n==10)
        {
            c++;
        }
    }
    cout<<a<<endl<<b<<endl<<c;
}

#include <iostream>
using namespace std;
int main()
{
int n,sum=0,num=0,ans=0;
cin>>n;
for(int i=1;i<=n;i++){
int a;
cin>>a;
if(a==1)
sum++;
else if(a==5)
num++;
else if(a==10)
ans++;
}	
	return 0;
}

#include <iostream>
using namespace std;
int main()
{
int n,sum=0,num=0,ans=0;
cin>>n;
for(int i=1;i<=n;i++){
int a;
cin>>a;
if(a==1)
sum++;
else if(a==5)
num++;
else if(a==10)
ans++;
}	
	return 0;
}

#include <iostream>
using namespace std;
int main()
{
int n,sum=0,num=0,ans=0;
cin>>n;
for(int i=1;i<=n;i++){
int a;
cin>>a;
if(a==1)
sum++;
else if(a==5)
num++;
else if(a==10)
ans++;
}	
	return 0;
}

#include <iostream>
using namespace std;
int main()
{
int n,sum=0,num=0,ans=0;
cin>>n;
for(int i=1;i<=n;i++){
int a;
cin>>a;
if(a==1)
sum++;
else if(a==5)
num++;
else if(a==10)
ans++;
}	
	return 0;
}

#include<cstdio>
#include<cstdlib>
#include<cmath>
#include<cctype>
#include<cstring>
#include<string>
#include<vector>
#include<set>
#include<stack>
#include<queue>
#include<iostream>
#include<iomanip>
#include<ctime>
#include<algorithm>
#include<map>
using namespace std;
int main(){
    int n,a=0,b=0,c=0;
    cin>>n;
    for(int i=1;i<=n;i++){
        int d;
        cin>>d;
        if(d==1)
            a++;
        else if(d==5)
            b++;
        else if(d==10)
            c++;  
    }
    printf("%d\n%d\n%d\n",a,b,c);
}

#include<iostream>
#include<iomanip>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<string>
#include<algorithm>
#define LL long long
using namespace std;
const int N=1e5+10;
const int Inf=0x3f3f3f3f;
LL n[N],f,a1,a5,a10;
int main(){
cin>>f;
for(LL i=0;i<f;i++){
cin>>n[i];
}for(LL i=0;i<f;i++){
if(n[i]==1){
a1++;
}if(n[i]==5){
a5++;
}if(n[i]==10){
a10++;
}
}
cout<<a1<<"\n"<<a5<<"\n"<<a10;
}

#include<iostream>
#include<iomanip>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<string>
#include<algorithm>
#define LL long long
using namespace std;
const int N=1e5+10;
const int Inf=0x3f3f3f3f;
LL n[N],f,a1,a5,a10;
int main(){
cin>>f;
for(LL i=0;i<f;i++){
cin>>n[i];
}for(LL i=0;i<f;i++){
if(n[i]==1){
a1++;
}if(n[i]==5){
a5++;
}if(n[i]==10){
a10++;
}
}
cout<<a1<<"\n"<<a5<<"\n"<<a10;
}

#include <iostream>
#include <stdio.h>
#include <math.h>
#include <iomanip>
using namespace std;
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int k , n , one , five , ten;
int main()
{
	cin >> k;
	for( int i = 1 ; i <= k ; i++ )
	{
		cin >> n;
		if( n == 1 )
		{
			one += 1;
		}
		else if( n == 5 )
		{
			five += 1;
		}
		else if( n == 10 )
		{
			ten += 1;
		}
	}
	cout << one << endl << five << endl << ten; 
    return 0;
}

#include <iostream>
#include <math.h>
#include <iomanip>
using namespace std;
#define LL Long Long
const int N=1e5+10;
const int INF=0x3f3f3f3f;
int main()
{
    cin >> k;
    for (int i = 1 ; i <= k ; i++)
    {
        cin >> n;
        if (n==1)
        {
            a++;
        }
        
        if (n==5)
        {
            b++;
        }
        if (n==10)
        {
            c++;
        }
}```

#include<bits/stdc++.h> using namespace std; int main() { int n,a[101],b[4]={0}; cin>>n; for(int i=1; i<=n; i++) { cin>>a[i]; if(a[i]==1) b[1]++; if(a[i]==5) b[2]++; if(a[i]==10) b[3]++; } cout<<b[1]<<endl<<b[2]<<endl<<b[3]; return 0; }

What water question!

//Accepted code:
#include <bits/stdc++.h>
/*#include <iostream>
#include <stdio.h>
#include <stdbool.h>
#include <iomanip>
#include <cstdio>
*/

//any function
void sleep(int p){
	long long int jiouiuiojioiouuiijyuiuyiyi = 0;
	const int N = 1e5 + 10;
	const int INF = 0x3f3f3f3f;
	for(int k = 1;k <= p;k++){
		for(int j = 1;j <= 300;j++){
			for(int i = 1;i <= N;i++){
			jiouiuiojioiouuiijyuiuyiyi += pow(N,N);
			}
		}
	}
}


//code write block
using namespace std;
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int n,one,five,ten;
int main(){

	cin >> n;
	for(int i = 1;i <= n;i++){
		int x;
		cin >> x;
		if(x == 1){
			one++;
		}
		else if(x == 5){
			five++;
		}
		else if(x == 10){
			ten++;
		}
	}
	cout << one << endl << five << endl << ten;
	return 0;
	}

#include <stdio.h>

#include <iostream>

using namespace std;

int main()

{

int n ;

int a,b,c;

a = b = c = 0;

cin >> n;

for(int i = 0;i < n;i++ )

{

    int x;

    cin >> x;

    if(x == 1)

        a++;

    if(x == 5)

        b++;

    if(x == 10)

        c++;

}

cout << a << endl;

cout << b << endl;

cout << c << endl;

}

#include <stdio.h> #include <iostream> #include<cstdlib> using namespace std; int k,a,b,c,n; int main() {
cin>>k; for(int i=0; i<k ;i++) {

cin>>n;
if(n==1)
{
 a++;
}

if(n==5)
{
b=b+1;
}

if(n==10)
{
c=c+1;
}

}
cout<<a<<endl;
cout<<b<<endl;
cout<<c<<endl;

}

#include<iostream>
#include<cstdio>
#include<cstdlib>
int k,n,a,b,c;
using namespace std;
int main()

{
    cin>>k;
    
    for (int i = 1; i <= k; i++)
    {
        cin>>n;
        if (n==1)
        {
            a++;
        }
        
        if (n==5)
        {
            b++;
        }
        if (n==10)
        {
            c++;
        }
    }
    cout<<a<<endl<<b<<endl<<c;
}