Submission #1654382

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Source Code Expand

// Example program
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 2e5 + 1;

typedef long long int ll;

ll a[MAXN];

int main()
{
    ll n;
    ll x = 0;
    cin >> n;
    for (int i = 0; i < n; i++)
    {
        cin >> a[i];
        x += a[i];
    }
    if (x % ((n * (n + 1)) / 2) == 0)
    {
        ll u = 0;
        for (int i = 0; i < n; i++)
            if (a[i] > u)
                u = a[i];
        for (int i = 2; i < n; i++)
        {
            if (a[i] == u && a[i - 1] != u && a[i - 2] == u)
            {
                cout << "NO";
                return ;
            }
        }
        sort(a, a + n);
        for (int i = 0; i < n; i++)
        {
            if (a[i] < (x / ((n * (n + 1)) / 2)) + i)
            {
                cout << "NO";
                return 0;
            }
        }
        if (a[n - 1] > ((x / ((n * (n + 1)) / 2)) * n))
        {
            cout << "NO";
            return 0;
        }
        for (int i = 1; i < n; i++)
        {
            if (a[i] > a[i - 1] + n)
            {
                cout << "NO";
                return 0;
            }
        }
        cout << "YES";
    }
    else
        cout << "NO";
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:33:17: error: return-statement with no value, in function returning ‘int’ [-fpermissive]
                 return ;
                 ^