problem_id
stringclasses
428 values
submission_id
stringlengths
10
10
status
stringclasses
2 values
code
stringlengths
5
816
p02829
s650443946
Wrong Answer
a = int(input()) b = int(input()) mul = int(a*b) if mul == 2: print(3) elif mul == 3: print(2) else: print(6)
p03250
s428683337
Accepted
a, b, c = map(int, input().split()) x = max(a, b, c) print(9 * x + sum([a, b, c]))
p03639
s955285157
Accepted
N = int(input()) A = list(map(int, input().split())) even = 0 multiple4 = 0 for a in A: if a % 4 == 0: multiple4 += 1 elif a % 2 == 0: even += 1 N -= ((even//2)*2)+multiple4 if N <= multiple4+1: print('Yes') else: print('No')
p03206
s505996784
Accepted
d = { '25': 'Christmas', '24': 'Christmas Eve', '23': 'Christmas Eve Eve', '22': 'Christmas Eve Eve Eve' } print(d[input()])
p02771
s097444710
Wrong Answer
a, b, c = map(int,input().split()) lst = [a,b,c] if sorted(lst) == lst: print('No') else: print('Yes')
p02958
s717706980
Wrong Answer
N = int(input()) P = list(map(int, input().split())) ans = 0 for i in range(N): ans += P[i] != i+1 print('No' if ans > 2 else 'Yes')
p04034
s260484788
Accepted
n,m = map(int,input().split()) l = [list(map(int,input().split())) for i in range(m)] x,y = [list(i) for i in zip(*l)] num = [1] * n red = ['out'] * n red[0] = 'in' for i in range(m): if red[x[i]-1] == 'in': red[y[i]-1] = 'in' num[x[i]-1] -= 1 num[y[i]-1] += 1 if num[x[i]-1] == 0: red[x[i]-1] = 'out' print(red.count('in'))
p02842
s679829640
Accepted
from math import ceil,floor N=int(input()) n1=int(N/1.08) n2=ceil(N/1.08) if floor(n1*1.08)==N: print(n1) elif floor(n2*1.08)==N: print(n2) else: print(":(")
p03000
s143730729
Accepted
import sys input = sys.stdin.readline N, X = map(int, input().split()) a = list(map(int, input().split())) cs = [0] * (N + 1) for i in range(N): cs[i + 1] = cs[i] + a[i] res = N + 1 for i in range(N + 1): if cs[i] > X: res = i break print(res)
p03785
s057681348
Wrong Answer
N,C,K = map(int,input().split()) T = [int(input()) for i in range(N)] T.sort() busCount = 0 pCount = 0 time = 0 firstTime = 0 for i in range(N): time = T[i] if firstTime == 0: firstTime = T[i] busCount += 1 pCount += 1 if pCount == C: firstTime = 0 pCount = 0 continue if time > firstTime + K: firstTime = T[i] busCount += 1 pCount = 1 print(busCount)
p02681
s310140786
Accepted
s = input() t = input() if s == t[:-1]: print("Yes") else: print("No")
p03438
s113946559
Accepted
N=int(input()) A=list(map(int,input().split())) B=list(map(int,input().split())) sabun=[B[i]-A[i] for i in range(N)] sabun.sort() num=0 for n in sabun: if n<0: num+=n else: num+=n//2 print("Yes" if num>=0 else "No")
p03261
s293207103
Wrong Answer
n = int(input()) l = [] for i in range(n): w = input() l.append(w) for k in range(n): if l[k-1][-1] != l[k][0]: flag =1 break for j in range(i): if l[k] == l[j]: flag = 1 break if(flag == 1): print('No') else: print('Yes')
p02811
s727236280
Accepted
k, x = map(int, input().split()) if 500*k >= x: print("Yes") else: print("No")
p02897
s187766315
Accepted
n=int(input()) print(((n+1)//2)/n)
p03455
s092754302
Accepted
a, b = map(int, input().split()) if (a*b % 2 == 0): print('Even') else: print('Odd')
p03799
s205068101
Accepted
def solve(): N, M = map(int, input().split()) if M<2*N: return M//2 return N+(M-2*N)//4 print(solve())
p03854
s399254534
Wrong Answer
import re S = input() print("YES" if re.match("(dream|dreamer|erase|eraser)", S) else "NO")
p02823
s254116095
Accepted
n, a, b = map(int, input().strip().split()) if (b - a) % 2 == 1: dt1 = a - 1 dt1 += 1 b1 = b - dt1 t1 = dt1 + (b1 - 1) // 2 dt2 = n - b dt2 += 1 a1 = a + dt2 t2 = dt2 + (n - a1) // 2 print(min(t1, t2)) else: print((b - a) // 2)
p02859
s900900016
Accepted
import sys def propare(): def iterate_tokens(): for line in sys.stdin: for word in line.split(): yield word tokens = iterate_tokens() r = int(next(tokens)) solve(r) def solve(r: int): print(int(r*r/1)) return if __name__ == "__main__": propare()
p03680
s154975066
Accepted
n = int(input()) f = [int(input()) for _ in range(n)] f = [0] + f vis = [0] * (n + 1) s , flag , ans = 1 , 0 , 0 vis[s] = 1 while f[s] != 2: if vis[f[s]] == 1: flag = 1 break s = f[s] vis[s] = 1 ans+=1 if (flag): print(-1) else: print(ans+1)
p02996
s948589416
Wrong Answer
x = int(input()) job = [] time = [] for i in range(x): j, t = list(map(int, input().split())) job.append(j) time.append(t) jt = 0 tt = 0 f = 0 print(job, time) for i in range(x): if job[i] <= time[i]: pass else: print("No") f = 1 break jt += job[i] if tt < time[i]: tt = time[i] if jt > tt: f = 1 print("No") break if f == 0: print("Yes")
p03324
s767467309
Accepted
#100b D,N = map(int, input().split()) if D==0: if N!=100: print(N) else: print(1*(N+1)) elif D==1: if N!=100: print(100*N) else: print(100*(N+1)) elif D==2: if N!=100: print(10000*N) else: print(10000*(N+1))
p03557
s596163680
Accepted
#!/usr/bin/env python3 import bisect N = int(input()) A = list(map(int, input().split())) B = list(map(int, input().split())) C = list(map(int, input().split())) A = sorted(A) B = sorted(B) C = sorted(C) res = 0 for b in B: index_a = bisect.bisect_left(A, b) index_c = bisect.bisect_right(C, b) res += index_a * (N - index_c) print(res)
p02775
s481214524
Accepted
def main(): n = input() l = len(n) ans = 0 p = 0 for i in range(l-1, -1, -1): v = int(n[i]) if p == 1: v += 1 if v > 5 or (i != 0 and v == 5 and int(n[i-1]) >= 5): ans += (10-v) p = 1 else: ans += v p = 0 if p == 1: ans += 1 print(ans) main()
p02658
s616193194
Accepted
n = int(input()) a = list(map(int, input().split())) if 0 in a: print(0) exit() ans = 1 for i in range(n): ans *= a[i] if ans > 10**18: print(-1) exit() print(ans)
p03486
s622746372
Accepted
import math def main(): s = input() t = input() sx=sorted(s) tx=sorted(t,reverse=True) if sx<tx: print('Yes') else: print('No') main()
p03730
s289296816
Wrong Answer
a,b,c=[int(i) for i in input().split()] if c in [(a*i)%b for i in range(b)]: print("Yes") else: print("No")
p02688
s142050261
Wrong Answer
import sys N, K = map(int, input().split()) a = [0] * N a = [list(map(int, input().split())) for _ in range(K*2)] Sunuke = list(range(1,N+1)) #print(a) for i,word in enumerate(a): # print("i",i,word) if (i % 2) == 1: # print(word) for j,check in enumerate(Sunuke): if check in word: # print(check,word,Sunuke) Sunuke.remove(check) print(len(Sunuke))
p03943
s387681423
Wrong Answer
a,b,c = map(int,input().split()) if a == b+c or b == a+c or c == a+c: print("Yes") else: print("No")
p03285
s587281317
Accepted
N = int(input()) C = 4 D = 7 value = 0 ans = "No" for i in range(100): for j in range(100): value = C * i + D * j if value == N: ans = "Yes" break print(ans)
p02570
s747331710
Wrong Answer
def a(D,T,S): a=D/S if a<=T: return Yes else: return No
p03657
s427743986
Wrong Answer
a,b=map(int,input().split()) print('Possible') if a+b>=3 or a%3==0 or b%3==0 else print('Impossible')
p02802
s028672858
Accepted
n, m = map(int, input().split()) d = {} cnt_ac = 0 cnt_wa = 0 for _ in range(m): p, s = input().split() if p not in d: d[p] = [s] else: d[p].append(s) for i in d: if 'AC' in d[i]: cnt_ac += 1 cnt_wa += d[i].index('AC') print(cnt_ac, cnt_wa)
p02831
s451912680
Wrong Answer
def main(): a, b = map(int, input().split()) a = min(a, b) b = max(a, b) d = gcd(a, b) d1 = a / d d2 = b / d print(int(d * d1 * d2)) def gcd(a, b): while b > 0: tmp = a % b a = b b = tmp return a if __name__ == "__main__": main()
p02705
s707513498
Accepted
print(2*int(input())*3.14)
p03379
s673630966
Wrong Answer
N = int(input()) X = list(map(int, input().split())) S = sorted(X) print(S) for i in range(N): if X[i] <= S[N//2 - 1]: print(S[N//2]) else: print(S[N//2 -1])
p03565
s431550527
Accepted
import sys s = input() t = input() lenS = len(s) lenT = len(t) for i in range(lenS-lenT,-1,-1): sub = s[i:i+lenT] for j in range(lenT): if sub[j]!="?" and sub[j]!=t[j]: break else: s=s.replace("?","a") print(s[:i]+t+s[i+lenT:]) sys.exit() continue print('UNRESTORABLE')
p02747
s034092100
Accepted
class Solution(object): def is_hitachi_string(self, string): if len(string) == 0: print 'No' return hi_str = 'hi' hi_idx = 0 for idx in xrange(len(string)): if idx > 9: print 'No' return if string[idx] != hi_str[hi_idx]: print 'No' return hi_idx = (hi_idx + 1) % 2 if hi_idx == 0: print 'Yes' else: print 'No' if __name__ == '__main__': sol = Solution() string = raw_input() sol.is_hitachi_string(string)
p02714
s322266769
Wrong Answer
N=int(input()) S=input() r,g,b=[],[],[] for i in range(N): s = S[i] if s=='R':r.append(i) elif s=='G':g.append(i) else:b.append(i) count = 0 for i in r: for j in g: x,y,z = i+j, (i+j)/2, min(i,j)-abs(i-j) c = 0 if x in b:c+=1 if y in b:c+=1 if z in b:c+=1 count += len(b)-c print(count)
p03555
s677607925
Accepted
S1=input() S2=input() ans=1 for i in range(3): if S1[i]!=S2[2-i]: ans=ans*0 print(["NO","YES"][ans])
p03293
s822417644
Accepted
s = input() t = input() for i in range(len(s)): s = s[-1] + s[:-1] if s==t: print("Yes") exit() print("No")
p04045
s403191835
Accepted
n,k=map(int,input().split()) D = list(map(str,input().split())) x = n while True: y = str(x) for i in range(len(y)): if y[i] in D: break else: ans = x break x += 1 print(ans)
p03760
s538720017
Wrong Answer
o = list(input()) e = list(input()) lst = [] for oo,ee in zip(o,e): lst.append(oo+ee) print("".join(lst))
p02777
s632025625
Wrong Answer
s,t=input().split() a,b=map(int,input().split()) u=input() if s==u: print(a-1) else: print(b-1)
p02687
s884308731
Accepted
s = input() if s[1] == 'B': print('ARC') else: print('ABC')
p02689
s628665804
Accepted
n,m = map(int,input().split()) h = list(map(int, input().split())) ab = [0]* m box = [1] * n for i in range(m): ab[i] = list(map(int,input().split())) if h[ab[i][0]-1] == h[ab[i][1]-1]: box[ab[i][0]-1] = 0 box[ab[i][1] - 1] = 0 elif h[ab[i][0]-1] > h[ab[i][1]-1]: box[ab[i][1] - 1] = 0 else: box[ab[i][0] - 1] = 0 print(sum(box))
p02546
s406954318
Wrong Answer
s=input() if s[-1]=='s': print(s[:len(s)-1]+'es') else: print(s+'s')
p02726
s814987755
Wrong Answer
N, X, Y = map(int, input().split()) distance = [] N += 1 XYdist = Y - X - 1 for i in range(2, N) : for j in range(1, i) : if i >= Y and j <= X : distance.append(i - j - XYdist) else : distance.append(i - j) for i in range(1, N - 1) : print(distance.count(i))
p02711
s131577201
Accepted
s=input() if('7' in s): print("Yes") else: print("No")
p04011
s736376130
Accepted
n = int(input()) k = int(input()) x = int(input()) y = int(input()) if n<=k: ans = x*n else: ans = x*k + y*(n-k) print(ans)
p04045
s937323049
Accepted
n, k = map(int, input().split()) d = list(input().split()) #n = 1000 flag = True while flag: flag2 = True for si in str(n): if si in d: n += 1 flag2 = False break if flag2: break else: flag = True print(n)
p02847
s920863236
Accepted
s = input() if s == "SUN": print(7) elif s == "MON": print(6) elif s == "TUE": print(5) elif s == "WED": print(4) elif s == "THU": print(3) elif s == "FRI": print(2) else: print(1)
p03455
s128942271
Wrong Answer
a,b = map(int, input().split()) print("Even" if a*b%2 == 0 else "No")
p02732
s043016409
Accepted
def main(): N = int(input()) *a, = map(int, input().split()) d = [0] * (N + 1) for x in a: d[x] += 1 b = 0 for x in d: b += x * (x - 1) // 2 for x in a: t = b - (d[x] - 1) print(t) if __name__ == '__main__': main() # import sys # # sys.setrecursionlimit(10 ** 7) # # input = sys.stdin.readline # rstrip() # int(input()) # map(int, input().split())
p02918
s200102779
Accepted
n,k = map(int,input().split()) s = input() edge,inside,cnt,ix = 0,0,0,0 if s[0]=='R' or s[-1]=='R': edge += 1 temp = '' for i in range(n): if temp=='R' and s[i]=='L': inside += 1 elif temp==s[i]: cnt += 1 temp = s[i] if inside>=k: print(min(k*2+cnt,n-1)) else: print(min(inside*2+edge+cnt,n-1))
p03035
s054462282
Accepted
tmp = input().split(" ") age = int(tmp[0]) fee = int(tmp[1]) if age >= 13: print(fee) elif age >= 6: print(int(fee/2)) else: print(0)
p03427
s837903650
Accepted
n = input() A = [] sum = 0 for i in n: A.append(i) sum += int(i) if A[0] == '1': print(max(sum, (len(A) - 1) * 9)) else: print(max(sum, (len(A) - 1) * 9 + int(A[0]) - 1))
p02766
s794590460
Wrong Answer
n,k = map(int,input().split()) l = [] for i in range(1,n): if n > 0: n = n // k l.append(n) else: break print(len(l))
p03289
s457513650
Accepted
s = input() print("AC" if 'C' in s[2:-1] and 'A' in s and s[1:].replace('C', '', 1).islower() else "WA")
p03281
s385254844
Wrong Answer
def make_divisors(n): divisors = [] for i in range(1, int(n**0.5)+1): if n % i == 0: divisors.append(i) if i != n // i: divisors.append(n//i) # divisors.sort() return divisors n = int(input()) cnt = 0 for i in range(1, n+1): if i%2==0: continue elif sum(make_divisors(i))==8: cnt = cnt + 1 print(cnt)
p02946
s640972189
Accepted
k,x = map(int,input().split()) st = x-k+1 en = x+k print(*list(range(st,en)))
p02838
s910269397
Accepted
import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines sys.setrecursionlimit(10 ** 7) n, *a = map(int, read().split()) mod = 10 ** 9 + 7 ans = 0 x = 1 for bit in range(60): b = 0 for i, aa in enumerate(a): if aa % 2: b += 1 a[i] //= 2 ans += (x * b * (n - b)) % mod ans %= mod x *= 2 x %= mod print(ans)
p03696
s383937536
Accepted
n = int(input()) s = input() nopen = 0 sl = '' sr = '' for c in s: if c == '(': nopen += 1 else: if nopen == 0: sl += '(' else: nopen -= 1 nopen = sum([1 if c == '(' else -1 for c in sl + s]) sr = ')' * nopen print(sl + s + sr)
p02972
s084242498
Accepted
N = int(input()) A = list(map(int, input().split())) box = [0] * (N+1) ans = [] for i in range(N,0,-1): work = 0 for j in range(0,N+1,i): work += box[j] #print(i,j) if work % 2 != A[i-1]: box[i] = 1 ans.append(i) print(len(ans)) if len(ans) > 0: print(" ".join(list(map(str, ans))))
p02791
s328028087
Wrong Answer
N = int(input()) i = list(map(int, input().split())) min = i[0] count = 1 for n in range(N-1): if min > i[n]: min = i[n] count +=1 else: pass print(count)
p03494
s535435077
Wrong Answer
n = int(input()) a = [int(x) for x in input().split()] d=0 while True: c=0 for i in range(n): if a[i]%2==0: a[i]=a[i]/2 c+=1 if c==0: break else: d+=1 print(d)
p02725
s135346851
Accepted
K,N= map(int,input().split()) A= list(map(int,input().split())) A = A + [A[0]+K] diff = [b-a for a,b in zip(A,A[1:])] mA = max(diff) print(K-mA)
p03799
s097494108
Accepted
N, M = map(int,input().split()) if N*2 > M: print(M//2) else: print(N + (M-N*2)//4)
p02657
s400453155
Accepted
a,b=map(int,input().split()) print(a*b)
p03030
s687160096
Accepted
n = int(input()) sp = [] for i in range(1,n+1): s,p = input().split() sp.append([s,int(p),i]) sp.sort(reverse = True,key = lambda x:x[1]) sp.sort(key = lambda x:x[0]) for i in range(n): print(sp[i][2])
p03043
s022888426
Accepted
n, k = map(int, input().split()) ans = 0 for i in range(1, n+1): p = 1 / n point = i while True: if point >= k: break else: point *= 2 p *= 0.5 ans += p print(ans)
p03469
s224508488
Accepted
S = input() ans = [] for i in range(len(S)): if i == 3: ans.append('8') else: ans.append(S[i]) print(''.join(ans))
p02772
s098846935
Accepted
N = int(input()) A = list(map(int,input().split(" "))) for a in A: if a%2 == 0: if a%3 != 0 and a%5 != 0: print('DENIED') exit() print('APPROVED')
p02690
s285311514
Accepted
from decimal import Decimal x = int(input()) cnt = 0 while True: a = cnt ** 5 if a < x: a = x - a z = -1 else: a -= x z = 1 a = Decimal(a) ** Decimal("0.2") if a % 1 == 0: print(cnt, int(a * z)) break cnt += 1
p02790
s368916084
Wrong Answer
i = list(map(int, input().split())) ans=0 if i[0]<i[1]: for n in range(i[1]): ans += i[0]*10**n print(ans) else: for n in range(i[0]): ans += i[1]*10**n print(ans) print(ans)
p02615
s287463343
Accepted
N = int(input()) A = list(map(int, input().split())) S = sorted(A, reverse=True) X = S[0] N -= 2 i = 0 while N > 0: i += 1 x = S[i] X += x if N == 1: break X += x N -= 2 print(X)
p02597
s630213120
Accepted
n = int(input()) c = input() #右端から見ていって初めのRが出たらWとRをカウントする cnt = 0 R = 0 W = 0 for i in range(n): if c[i] == "R":R += 1 else:W += 1 for i in range(R): if c[i] == "W":cnt += 1 print(cnt)
p02993
s112230285
Accepted
x=input() b=x[0] for i in x[1:]: if b==i: print("Bad") break b=i else: print("Good")
p03387
s704560089
Wrong Answer
def main(): A = list(map(int, input().split())) diff = 0 print(A) for i in range(len(A)): diff += max(A)-A[i] if diff%2 == 0: print(diff//2) else: print(diff//2+2) if __name__ == '__main__': main()
p03163
s085021550
Wrong Answer
n,W=map(int,input().split()) dp=[0]*(W+1) for _ in range(n): w,v=map(int,input().split()) for j in range(W-w+1): dp[j+w]=max(dp[j+w],dp[j]+v) print(dp[W])
p03637
s028114091
Wrong Answer
N = int(input()) A = [int(x) for x in input().split()] cnt = 0 flg_2 = 0 for a in A: if a % 4 == 0: cnt += 1 elif a == 2: flg_2 += 1 if flg_2 >= 2: N -= flg_2 - 1 # if cnt >= N//2: if cnt >= ((N-1)/2): ans = 'Yes' else: ans = 'No' print(ans)
p03041
s679787840
Accepted
N, K = map(int, input().split()) S = input() print(S[:K-1]+S[K-1].lower()+S[K:])
p02765
s784120371
Accepted
N, R= map(int, input().split()) if N <= 10: print(R+(100*(10-N))) else: print(R)
p02719
s447282217
Wrong Answer
N, K = list(map(int, input().split())) def x(N, K): y = (N) f = 0 while True: N = abs(N - K) if y > N: y = N if y == N: f += 1 if f > 2: return y # if K == 0: # print(N) # elif K == 1: # print(0) # else: # print(x(N, K)) print(x(N, K))
p02918
s055322239
Accepted
n, k = map(int, input().split()) s = input() + "#" group = 0 count = 0 for i in range(n): if s[i] == s[i+1]: count += 1 else: group += 1 if k >= group//2: print(n-1) else: print(count + 2*k)
p02900
s787243137
Accepted
from fractions import gcd a,b=map(int,input().split()) num=gcd(a,b) l=[1] while num!=1: x=int(num**(1/2)) for i in range(2,x+2): if num%i==0: num=num//i l.append(i) break elif i==x+1: l.append(num) num=1 break print(len(set(l)))
p02608
s044578080
Accepted
from collections import defaultdict dict=defaultdict(lambda:0) n=int(input()) for x in range(1,100): for y in range(1, 100): for z in range(1,100): p=(x+y+z)**2-(x*y+y*z+z*x) dict[p]+=1 for i in range(1,n+1): print(dict[i])
p03471
s908542652
Accepted
n,y=map(int,input().split()) flag=True for i in range(n+1): if flag: for j in range(n-i+1): k=n-i-j if 10000*i+5000*j+1000*k==y: print('{} {} {}'.format(i,j,k)) flag=False break else: break if flag: print('-1 -1 -1')
p03317
s031992923
Wrong Answer
n,k = map(int,input().split()) lst = list(map(int,input().split())) id_one = lst.index(1) left_length = len(lst[0:id_one]) #print(left_length) right_length = len(lst[id_one:])-1 #print(right_length) counter = 0 mn = min(left_length,right_length) mx = max(left_length,right_length) mx -= mn % (k-1) while mn > 0: counter += 1 mn -= k-1 mx -= mn % (k-1) while mx > 0: counter += 1 mx -= k-1 print(counter)
p02640
s275232499
Accepted
import sys X, Y = map(int, input().split()) for i in range(X+1): if Y == i*2 + (X-i)*4: print('Yes') sys.exit() print('No')
p02811
s256901588
Accepted
k, x = map(int, input().split()) if 500*k >= x: print('Yes') else: print('No')
p02880
s496981944
Accepted
n = int(input()) b = [i * j for i in range(1,10) for j in range(1,10)] print("Yes" if n in b else "No")
p03262
s796759931
Wrong Answer
N,X = map(int,input().split()) W = list(map(int,input().split())) + [X] W = sorted(W) dist = 10**18 if len(W) == 2: print(W[1]-W[0]) exit() for i in range(1,N): dist = min(dist, W[i]-W[i-1]) for j in range(1,N): if (W[i]-W[i-1])%dist != 0: dist -= 1 print(dist)
p02860
s301826788
Wrong Answer
def main(): n = int(input()) s = list(input()) if n % 2 != 0: print("No") else: div = n // 2 if s[:div-1] == s[div:n-1]: print("Yes") else: print("No") if __name__ == "__main__": main()
p03986
s988853127
Accepted
x = input() num = [0] for i in x: if i == "S": num.append(num[-1] - 1) else: num.append(num[-1] + 1) print(max(max(num), 0) * 2)
p02691
s443113894
Wrong Answer
N = int(input()) A = list(map(int, input().split())) ans = 0 for i in range(N-1): for j in range(i+1, N): if A[i] + A[j] == abs(i-j): ans += 1 print("OK",end="") print(ans)
p03206
s758611361
Accepted
a =int(input()) d = 25-a print('Christmas' + ' Eve'*d)
p03017
s960017704
Accepted
n, a, b, c, d = map(int, input().split()) s = input() if ("##" in s[min(a, b): max(c, d)]) or (d < c and "..." not in s[b-2: d+1]): print("No") else: print("Yes")
p02796
s021967163
Accepted
n=int(input()) robot=[] for i in range(n): x,l=map(int,input().split()) robot.append([x,l]) robot.sort() ans=1 for i in range(n-1): if robot[i][0]+robot[i][1]>robot[i+1][0]-robot[i+1][1]: if robot[i][0]+robot[i][1]<robot[i+1][0]+robot[i+1][1]: robot[i+1]=robot[i] else: ans+=1 print(ans)