k, a, b = [int(x) for x in input().split()]
score_a = 0
if a >= k:
score_a = a // k
score_b = 0
if b >= k:
score_b = b // k
if score_a == 0 and score_b == 0:
print(-1)
elif score_a == 0:
if b % k == 0:
print(score_b)
else:
print(-1)
elif score_b == 0:
if a % k == 0:
print(score_a)
else:
print(-1)
else:
print(score_a + score_b)#include <bits/stdc++.h>
#define Mo7amed_Alaa ios::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define ll long long
using namespace std;
int main()
{
Mo7amed_Alaa
ll k,a,b;
cin >> k >> a >> b;
ll ans = (a/k)+(b/k);
if ((a<k&&(b%k != 0))||(b<k&&(a%k != 0))) cout << -1;
else cout << ans;
return 0;
} 590. N-ary Tree Postorder Traversal | 589. N-ary Tree Preorder Traversal |
1299. Replace Elements with Greatest Element on Right Side | 1768. Merge Strings Alternately |
561. Array Partition I | 1374. Generate a String With Characters That Have Odd Counts |
1822. Sign of the Product of an Array | 1464. Maximum Product of Two Elements in an Array |
1323. Maximum 69 Number | 832. Flipping an Image |
1295. Find Numbers with Even Number of Digits | 1704. Determine if String Halves Are Alike |
1732. Find the Highest Altitude | 709. To Lower Case |
1688. Count of Matches in Tournament | 1684. Count the Number of Consistent Strings |
1588. Sum of All Odd Length Subarrays | 1662. Check If Two String Arrays are Equivalent |
1832. Check if the Sentence Is Pangram | 1678. Goal Parser Interpretation |
1389. Create Target Array in the Given Order | 1313. Decompress Run-Length Encoded List |
1281. Subtract the Product and Sum of Digits of an Integer | 1342. Number of Steps to Reduce a Number to Zero |
1528. Shuffle String | 1365. How Many Numbers Are Smaller Than the Current Number |
771. Jewels and Stones | 1512. Number of Good Pairs |
672. Richest Customer Wealth | 1470. Shuffle the Array |