25 条题解

  • 10
    @ 2022-1-8 11:18:40 
    #include <stdio.h>
#include <iostream>
using namespace std;
int main()
{
	int n;
	cin >> n;
	int sum = 0;
	int num =1,day = 1;
	for (int i = 1 ; i <= n ; i++)
	{
		sum += num;
		day -= 1;
		if(day ==0)
		{
			num++;
			day = num;
		}
	}
	cout << sum << endl;
}
    • 3
      @ 2022-10-29 14:14:22 
      #include <stdio.h>
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
	int a;
	cin>>a;
	int sum=0;
	int num=1,day=1;
	for(int i=1;i<=a;i++)
	{
		sum+=num;
		day-=1;
		if(day==0)
		{
			num++;
			day=num;
		}
	}
	cout<<sum;
}
      • 2
        @ 2025-12-7 18:51:39 
        #include <iostream>
using namespace std;
int main()
{
	int ans = 0,day,a = 1,b = 1;
	cin >> day;
	for (short i = 1;i <= day;i++)
	{
		ans += a;
		b--;
		if (b == 0)
		{
			a++;
			b = a;
		}
	}
	cout << ans;
	return 0;
}
        • 2
          @ 2023-6-6 17:51:11 
          #include<bits/stdc++.h>
using namespace std;
int n,cnt=0,sum=1;
int main(){
	cin>>n;
	for(int i=1,j=0;i<=n;i++,j++){
		if(j==sum){
			sum++;
			j=0;
		}
		cnt+=sum;
	}
	cout<<cnt;
	return 0;
}
          • 1
            @ 2024-11-22 19:05:07 
            #include <bits/stdc++.h>
using namespace std;
int a,t=1,n,ans;
int main() 
{
	cin>>a;
	for(int i=1;i<=a;i++){
	ans+=t;
	n++;
	if(t==n){
	t++;
	n = 0;
		}
	}
	cout<<ans;
	return 0;
}
            • 1
              @ 2024-10-13 18:59:38

              #include <stdio.h> #include using namespace std; int main() { int n; cin >> n; int sum = 0; int num = 1,day = 1; for (int i =1; i <= n ; i++) { sum += num; day -= 1; if(day == 0) { num++; day = num; } } cout << sum << endl; }

              • 1
                @ 2023-6-8 18:37:12 
                #include<bits/stdc++.h>
using namespace std;
int a,b,c;
int main(){
    cin>>a;
    for(int i=1,j=0;i<=a;i++,j++){
    	if(j==c){
    		c++;
    		j=0;
		}
		b+=c;
	}
	cout<<b;
	return 0;
}
                • 1
                  @ 2022-1-8 11:26:06 
                  #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()
{
	int n;
	cin >> n;
	int sum = 0;
	int sum = 1 , day = 1;
	for (int i = 1 ; i <= n ; i++)
	{
		sum += sum;
		day -=1;
		if(day == 0)
		{
			num++;
			day = num;
		}
	}
	cout << sum << endl;
}
                  • 1
                    @ 2022-1-8 11:20:05 
                    #include <stdio.h>
#include <iostream>
using namespace std;
int main()
{
    int n;
    cin >> n;
    int sum = 0;
    int num = 1,day = 1;
    for(int i = 1; i <= n ; i++)
    {
        sum += num;
        day -= 1;
        if (day == 0)
        {
            num++;
            day = num;
        }
    }
    cout << sum << endl;
}
                    • 1
                      @ 2022-1-8 11:15:53 
                      #include <stdio.h>
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
	int a;
	cin>>a;
	int sum=0;
	int num=1,day=1;
	for(int i=1;i<=a;i++)
	{
		sum+=num;
		day-=1;
		if(day==0)
		{
			num++;
			day=num;
		}
	}
	cout<<sum;
}
                      • 0
                        @ 2025-2-22 20:37:31 
                        #include <iostream>
using namespace std;
int main()
{
	int n;
	cin >> n;
	int sum = 0;
	int num =1,day = 1;
	for (int i = 1 ; i <= n ; i++)
	{
		sum += num;
		day -= 1;
		if(day ==0)
		{
			num++;
			day = num;
		}
	}
	cout << sum << endl;
}
                        • 0
                          @ 2024-10-13 18:59:20

                          #include <stdio.h> #include using namespace std; int main() { int n; cin >> n; int sum = 0; int num = 1,day = 1; for (int i =1; i <= n ; i++) { sum += num; day -= 1; if(day == 0) { num++; day = num; } } cout << sum << endl; }

                          • 0
                            @ 2024-1-30 15:00:57 
                            #include <iostream>
using namespace std;
int main()
{
	int n;
	cin >> n;
	int sum = 0;
	int num =1,day = 1;
	for (int i = 1 ; i <= n ; i++)
	{
		sum += num;
		day -= 1;
		if(day ==0)
		{
			num++;
			day = num;
		}
	}
	cout << sum << endl;
}
                            • 0
                              @ 2024-1-16 17:24:58

                              #include<stdio.h> #include #include<math.h> using namespace std; int main() { int n; cin>>n; for(int i=1;i<=n+1;i++) { for(int j=1;j<=n2+1;j++) { if(n-i+2j||n+ij) { cout<<""; } else { cout<<" "; } } cout<<endl; } for(int i=n;i>=1;i--) { for(int j=1;j<=n2+1;j++) { if(n-i+2j||n+ij) { cout<<""; } else { cout<<" "; } } cout<<endl; } }

                              • 0
                                @ 2024-1-16 17:24:43

                                #include<stdio.h> #include #include<math.h> using namespace std; int main() { int n; cin>>n; for(int i=1;i<=n+1;i++) { for(int j=1;j<=n2+1;j++) { if(n-i+2j||n+ij) { cout<<""; } else { cout<<" "; } } cout<<endl; } for(int i=n;i>=1;i--) { for(int j=1;j<=n2+1;j++) { if(n-i+2j||n+ij) { cout<<""; } else { cout<<" "; } } cout<<endl; } }

                                • 0
                                  @ 2023-8-27 18:16:43 
                                  # 循环嵌套初学者看过来！
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
long long n,day,sum;
int main()
{
	cin >> n;
	for(int i = 1;i <= n;i++)
	{
		for(int j = 1;j <= i;j++)
		{
			day++;
			sum += i;
			if(day == n)
			{
				cout << sum;
				return 0;
			}
		}
	}
	return 0;
}
                                  • 0
                                    @ 2023-3-26 20:19:22 
                                    using namespace std;
long long n,sum,day,i,j;
int main()
{
	cin>>n;
	for(i=1;i<=n;i++)
	{
		sum = sum+i*i;
		day = (1+i)*i/2;
		if(day>=n)
		{
			sum=sum-(day-n)*i;
			cout<<sum;
			return 0;
		}
	}
}
                                    • 0
                                      @ 2023-3-26 19:57:36

                                      #include

                                      using namespace std; int t; int main(){ int n,sum=0,day=0; cin>>n; for(int i=1;i<=n;i++){

                                      sum=sum+i*i;
		day=(1+i)*i/2;
		if(day>=n){
			sum=sum-(day-n)*i;
			cout<<sum;
			return 0;
		}
	
	
}
cout<<t;
return 0;

                                      }

                                      • 0
                                        @ 2023-3-26 19:32:28

                                        #include

                                        using namespace std; int t; int main(){ int n,sum=0,day=0; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=i;j++){ sum+=i; day++; if(day==n){ cout<<sum; return 0; } }

                                        }
cout<<t;
return 0;

                                        }

                                        • 0
                                          @ 2023-3-26 19:32:20

                                          #include

                                          using namespace std; int t; int main(){ int n,sum=0,day=0; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=i;j++){ sum+=i; day++; if(day==n){ cout<<sum; return 0; } }

                                          }
cout<<t;
return 0;

                                          }

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