message stringlengths 2 23.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 97 109k | cluster float64 0 0 | __index_level_0__ int64 194 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a shortest one.
Formally, a codeforces subseque... | instruction | 0 | 97,137 | 0 | 194,274 |
Tags: brute force, constructive algorithms, greedy, math, strings
Correct Solution:
```
n = int(input())
if n == 1:
print("codeforces")
exit()
num = 1
while num ** 10 < n:
num += 1
s = list("codeforces")
temp = 10
for i in reversed(range(11)):
if ((num ** i) * ((num - 1) ** (10 - i))) < n:
temp ... | output | 1 | 97,137 | 0 | 194,275 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a shortest one.
Formally, a codeforces subseque... | instruction | 0 | 97,138 | 0 | 194,276 |
Tags: brute force, constructive algorithms, greedy, math, strings
Correct Solution:
```
def tc():
k = int(input())
base = 1
while pow(base, 10) < k:
base += 1
less = 0
while pow(base, 10 - less) * pow(base - 1, less) > k:
less += 1
if pow(base, 10 - less) * pow(base - 1, less... | output | 1 | 97,138 | 0 | 194,277 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a shortest one.
Formally, a codeforces subseque... | instruction | 0 | 97,139 | 0 | 194,278 |
Tags: brute force, constructive algorithms, greedy, math, strings
Correct Solution:
```
def prod(arr):
ans=1
for i in arr:
ans *= i
return ans
def find_opt(arr,n):
if(prod(arr)>=n):
return arr
m = min(arr)
min_idx = arr.index(m)
arr[min_idx]+=1
return find_opt(arr,n)
n = int(... | output | 1 | 97,139 | 0 | 194,279 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a shortest one.
Formally, a codeforces subseque... | instruction | 0 | 97,140 | 0 | 194,280 |
Tags: brute force, constructive algorithms, greedy, math, strings
Correct Solution:
```
a=int(input())
l=[0,0,0,0,0,0,0,0,0,0]
id=0
g=1
while(1):
g=1
if id==10:
id=0
g=1
for j in range(10):
g=g*l[j]
if g>=a:
break
l[id]=l[id]+1
id=id+1
for i in range(l[0]):
print('c',end='')
for i in range(l... | output | 1 | 97,140 | 0 | 194,281 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,141 | 0 | 194,282 |
Yes | output | 1 | 97,141 | 0 | 194,283 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,142 | 0 | 194,284 |
Yes | output | 1 | 97,142 | 0 | 194,285 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,143 | 0 | 194,286 |
Yes | output | 1 | 97,143 | 0 | 194,287 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,144 | 0 | 194,288 |
Yes | output | 1 | 97,144 | 0 | 194,289 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,145 | 0 | 194,290 |
No | output | 1 | 97,145 | 0 | 194,291 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,146 | 0 | 194,292 |
No | output | 1 | 97,146 | 0 | 194,293 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,147 | 0 | 194,294 |
No | output | 1 | 97,147 | 0 | 194,295 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Karl likes Codeforces and subsequences. He wants to find a string of lowercase English letters that contains at least k subsequences codeforces. Out of all possible strings, Karl wants to find a... | instruction | 0 | 97,148 | 0 | 194,296 |
No | output | 1 | 97,148 | 0 | 194,297 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,183 | 0 | 194,366 |
Tags: data structures, greedy, strings
Correct Solution:
```
def mergesort(l,n):
if n==1:
return l,0
else:
a,ans1=mergesort(l[0:n//2],n//2)
b,ans2=mergesort(l[n//2:],n-n//2)
c,ans3=combine(a,n//2,b,n-n//2)
#print (c,ans1,ans2,ans3)
return (c,ans1+ans2+ans3)
def combine(l1,n,l2,m):
i=0
j=0
ans=[]
inve... | output | 1 | 97,183 | 0 | 194,367 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,184 | 0 | 194,368 |
Tags: data structures, greedy, strings
Correct Solution:
```
import functools
import datetime
import math
import collections
import heapq
maxn = int(2e5 + 5)
n = int(input())
s = input()
t = s[::-1]
a = [[] for i in range(31)]
# for i in range(30):
# a.append([])
tree = [0] * maxn
num = [0] * maxn
g = [0] * 30
d... | output | 1 | 97,184 | 0 | 194,369 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,185 | 0 | 194,370 |
Tags: data structures, greedy, strings
Correct Solution:
```
N = int(input())
S = input()
dic = {}
for i, s in enumerate(S):
if s in dic:
dic[s].append(i)
else:
dic[s] = [i]
X = list(range(N-1, -1, -1))
for c, idcs in dic.items():
for p, q in zip(idcs, reversed(idcs)):
X[p] = N-1-q... | output | 1 | 97,185 | 0 | 194,371 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,186 | 0 | 194,372 |
Tags: data structures, greedy, strings
Correct Solution:
```
# cook your dish here
import heapq
import collections
from math import log2
import itertools
from functools import lru_cache
from sys import setrecursionlimit as srl
srl(2*10**6)
N = 200001
class fenwick:
def __init__(self,n):
self.n = n
... | output | 1 | 97,186 | 0 | 194,373 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,187 | 0 | 194,374 |
Tags: data structures, greedy, strings
Correct Solution:
```
def mergeSortswap(arr):
if len(arr) >1:
mid = len(arr)//2
L = arr[:mid]
R = arr[mid:] # into 2 halves
x = mergeSortswap(L) # Sorting the first half
y = mergeSortswap(R)
i = j = k = 0
z = 0
... | output | 1 | 97,187 | 0 | 194,375 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,188 | 0 | 194,376 |
Tags: data structures, greedy, strings
Correct Solution:
```
n = int(input())
s = input()
SZ = 30
lim = n + 233
g = [[] for i in range(SZ)]
a = [0] * SZ
for i in range(n):
cur = ord(s[i]) - 97
g[cur].append(i)
bit = [0] * (lim+1)
def lowbit(x):
return x & (-x)
def add(pos, val):
while pos <= lim:
bit[pos] += ... | output | 1 | 97,188 | 0 | 194,377 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,189 | 0 | 194,378 |
Tags: data structures, greedy, strings
Correct Solution:
```
import sys
input=sys.stdin.readline
def segment_tree(ar,n):
data=[0]*n+ar.copy()
for i in range(n-1,0,-1):
data[i]+=(data[i*2]+data[i*2+1])
return data
def update(data,idx,n,value):
idx+=n
data[idx]+=value
while(idx>1):
... | output | 1 | 97,189 | 0 | 194,379 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-last letter before the reversal — and so on. For ... | instruction | 0 | 97,190 | 0 | 194,380 |
Tags: data structures, greedy, strings
Correct Solution:
```
from collections import defaultdict, Counter
class FenwickTree:
def __init__(self, n):
self.tree = [0] * (n + 1)
def _get(self, x):
res = 0
while x >= 1:
res += self.tree[x]
x -= x & -x
return... | output | 1 | 97,190 | 0 | 194,381 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,191 | 0 | 194,382 |
Yes | output | 1 | 97,191 | 0 | 194,383 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,192 | 0 | 194,384 |
Yes | output | 1 | 97,192 | 0 | 194,385 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,193 | 0 | 194,386 |
Yes | output | 1 | 97,193 | 0 | 194,387 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,194 | 0 | 194,388 |
Yes | output | 1 | 97,194 | 0 | 194,389 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,195 | 0 | 194,390 |
No | output | 1 | 97,195 | 0 | 194,391 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,196 | 0 | 194,392 |
No | output | 1 | 97,196 | 0 | 194,393 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,197 | 0 | 194,394 |
No | output | 1 | 97,197 | 0 | 194,395 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second letter should become equal to the second-to-la... | instruction | 0 | 97,198 | 0 | 194,396 |
No | output | 1 | 97,198 | 0 | 194,397 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,655 | 0 | 195,310 |
"Correct Solution:
```
n = int(input())
a = list(input())
b = list(set(a))
ans = 1
for i in b:
ans %= 10**9+7
ans *= a.count(i)+1
print((ans-1)%(10**9+7))
``` | output | 1 | 97,655 | 0 | 195,311 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,656 | 0 | 195,312 |
"Correct Solution:
```
_,s=open(0);a=1
for i in set(s):a*=s.count(i)+1
print(a//2%(10**9+7)-1)
``` | output | 1 | 97,656 | 0 | 195,313 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,657 | 0 | 195,314 |
"Correct Solution:
```
n=int(input())
s=input()
cnt=[0]*26
for i in s:cnt[ord(i)-ord('a')]+=1
mo=10**9+7
r=1
for i in cnt:
r*=i+1
r%=mo
print((r-1+mo)%mo)
``` | output | 1 | 97,657 | 0 | 195,315 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,658 | 0 | 195,316 |
"Correct Solution:
```
N=int(input())
X=[0 for i in range(26)]
S=input()
for i in S:
X[ord(i)-97]+=1
ans=1
P=10**9+7
for i in X:
ans=ans*(i+1)
ans%=P
ans-=1
print(ans)
``` | output | 1 | 97,658 | 0 | 195,317 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,659 | 0 | 195,318 |
"Correct Solution:
```
N = int(input())
S = input()
ans = 1
for c in range(ord('a'), ord('z') + 1):
ans *= S.count(chr(c)) + 1
print((ans-1) % (10**9 + 7))
``` | output | 1 | 97,659 | 0 | 195,319 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,660 | 0 | 195,320 |
"Correct Solution:
```
from collections import Counter
n = int(input())
S = input()
mod = 10**9+7
n = Counter(S)
ans = 1
for i, j in n.items():
ans *= (j+1)
print((ans-1)%mod)
``` | output | 1 | 97,660 | 0 | 195,321 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,661 | 0 | 195,322 |
"Correct Solution:
```
from collections import Counter
n=int(input())
s=input()
S=Counter(s)
ans=1
for i in S.values():
ans *=i+1
print((ans-1)%(10**9+7))
``` | output | 1 | 97,661 | 0 | 195,323 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if the... | instruction | 0 | 97,662 | 0 | 195,324 |
"Correct Solution:
```
MOD=10**9+7
N=int(input())
S=input()
cnt=[0]*26
for x in S:
cnt[ord(x)-97]+=1
res=1
for i in range(26):
res=res*(cnt[i]+1)%MOD
print(res-1)
``` | output | 1 | 97,662 | 0 | 195,325 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,663 | 0 | 195,326 |
Yes | output | 1 | 97,663 | 0 | 195,327 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,664 | 0 | 195,328 |
Yes | output | 1 | 97,664 | 0 | 195,329 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,665 | 0 | 195,330 |
Yes | output | 1 | 97,665 | 0 | 195,331 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,666 | 0 | 195,332 |
Yes | output | 1 | 97,666 | 0 | 195,333 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,667 | 0 | 195,334 |
No | output | 1 | 97,667 | 0 | 195,335 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,668 | 0 | 195,336 |
No | output | 1 | 97,668 | 0 | 195,337 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,669 | 0 | 195,338 |
No | output | 1 | 97,669 | 0 | 195,339 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters ... | instruction | 0 | 97,670 | 0 | 195,340 |
No | output | 1 | 97,670 | 0 | 195,341 |
Provide a correct Python 3 solution for this coding contest problem.
Problem statement
Given the string $ S $. Find the number of all anagrams in $ S $ that are palindromic.
An anagram of the string $ X $ is an anagram of $ Y $, which means that $ X $ is equal to $ Y $, or that the rearranged characters of $ X $ are... | instruction | 0 | 97,792 | 0 | 195,584 |
"Correct Solution:
```
from collections import Counter
import math
s = input()
dic = Counter(s)
n_odd = 0
for c in dic:
if dic[c] & 1:
n_odd += 1
if n_odd > 1:
print(0)
exit()
dic[c] -= 1
ans = math.factorial(len(s) // 2)
for num in dic.values():
ans //= math.f... | output | 1 | 97,792 | 0 | 195,585 |
Provide a correct Python 3 solution for this coding contest problem.
Problem statement
Given the string $ S $. Find the number of all anagrams in $ S $ that are palindromic.
An anagram of the string $ X $ is an anagram of $ Y $, which means that $ X $ is equal to $ Y $, or that the rearranged characters of $ X $ are... | instruction | 0 | 97,793 | 0 | 195,586 |
"Correct Solution:
```
import collections
from math import *
s=input()
a=collections.Counter(s)
o=0
for x in a:
if a[x]&1:
o+=1
if o>1:print(0);break
a[x]-=1
else:
b=factorial(len(s)//2)
for x in a.values():
b//=factorial(x//2)
print(b)
``` | output | 1 | 97,793 | 0 | 195,587 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two integers n and k.
Your task is to construct such a string s of length n that for each i from 1 to k there is at least one i-th letter of the Latin alphabet in this string (the first letter is 'a', the second is 'b' and so ... | instruction | 0 | 97,858 | 0 | 195,716 |
Tags: implementation
Correct Solution:
```
s = 'abcdefghijklmnopqrstuvwxyz'
for _ in range(int(input())):
n, k = list(map(int, input().strip().split()))
q = n//k
rem = n % k
print(s[:k]*q + s[:rem])
``` | output | 1 | 97,858 | 0 | 195,717 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two integers n and k.
Your task is to construct such a string s of length n that for each i from 1 to k there is at least one i-th letter of the Latin alphabet in this string (the first letter is 'a', the second is 'b' and so ... | instruction | 0 | 97,859 | 0 | 195,718 |
Tags: implementation
Correct Solution:
```
t = int(input())
alp = list('abcdefghijklmnopqrstuvwxyz')
for i in range(t):
n, k = tuple(map(int, input().split()))
j = 0
s = ''
while len(s) != n:
s += alp[j]
if j == k - 1:
j = -1
j += 1
print(s)
``` | output | 1 | 97,859 | 0 | 195,719 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two integers n and k.
Your task is to construct such a string s of length n that for each i from 1 to k there is at least one i-th letter of the Latin alphabet in this string (the first letter is 'a', the second is 'b' and so ... | instruction | 0 | 97,860 | 0 | 195,720 |
Tags: implementation
Correct Solution:
```
num=int(input())
alph="abcdefghijklmnopqrstuvwxyz"
while num:
a=[]
r=[]
n,k=map(int,input().split())
f=int(n/k)
for i in range(k):
a.append(alph[i])
for i in range(len(a)):
for j in range(f):
r.append(a[i])
while len(r)!=n:
... | output | 1 | 97,860 | 0 | 195,721 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two integers n and k.
Your task is to construct such a string s of length n that for each i from 1 to k there is at least one i-th letter of the Latin alphabet in this string (the first letter is 'a', the second is 'b' and so ... | instruction | 0 | 97,861 | 0 | 195,722 |
Tags: implementation
Correct Solution:
```
alphabet = 'abcdefghijklmnopqrstuvwxyz'
t = int(input())
for i in range(t):
x, y = list(map(int, input().split()))
k = x // y
s = ''
for i in range(k):
s += alphabet[:y]
k = x % y
if k != 0:
s += alphabet[:k]
print(s)
``` | output | 1 | 97,861 | 0 | 195,723 |
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