Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-

import sys
import copy

sys.setrecursionlimit(1000000)

# input = sys.stdin.readline

# ~~~~~~~~~~~~~~~~~~~~~_(＾～＾ ｣ ∠)_~~~~~~~~~~~~~~~~~~

R, G, B, N = map(int, input().split())

ans = 0
for r in range(3001):
    for g in range(3001):
        ball = r * R + g * G
        d = N - ball
        if d >= 0 and d % B == 0:
            ans += 1
        # elif d < 0:
        #     break

print(ans)

Fixed submission:
# -*- coding: utf-8 -*-

import sys
import copy

sys.setrecursionlimit(1000000)

# input = sys.stdin.readline

# ~~~~~~~~~~~~~~~~~~~~~_(＾～＾ ｣ ∠)_~~~~~~~~~~~~~~~~~~

R, G, B, N = map(int, input().split())

ans = 0
for r in range(3001):
    for g in range(3001):
        ball = r * R + g * G
        d = N - ball
        if d >= 0 and d % B == 0:
            ans += 1
        # elif d < 0:
        #     break

print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-

import sys
import copy

sys.setrecursionlimit(1000000)

# input = sys.stdin.readline

# ~~~~~~~~~~~~~~~~~~~~~_(＾～＾ ｣ ∠)_~~~~~~~~~~~~~~~~~~~~~

N = int(input())

V = list(map(int, input().split()))
C = list(map(int, input().split()))

ans = 0

for bit in range(1 << N):
    sum = 0
    for i in range(N):
        if bit & (1 << i):
            sum += V[i]
            sum -= C[i]
    ans = max(ans, sum)

print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

import sys
import copy

sys.setrecursionlimit(1000000)

# input = sys.stdin.readline

# ~~~~~~~~~~~~~~~~~~~~~_(＾～＾ ｣ ∠)_~~~~~~~~~~~~~~~~~~~~~

N = int(input())

V = list(map(int, input().split()))
C = list(map(int, input().split()))

ans = 0
for i in range(N):
    ans += max(0, V[i] - C[i])

print(ans)
Buggy python submission (verdict: Runtime Error):
n = int(input())
s = input()

l = 0
r = n - 1
ans = 0
while r > l:

    while r > l:
        if s[l] == 'W': break
        else: l += 1
    while r > l:
        if s[r] == 'R': break
        else: r += 1
    if r > l:
        ans += 1
        r -= 1
        l += 1
print(ans)

Fixed submission:
n = int(input())
s = input()

l = 0
r = n - 1
ans = 0
while r > l:

    while r > l:
        if s[l] == 'W': break
        else: l += 1
    while r > l:
        if s[r] == 'R': break
        else: r -= 1
    if r > l:
        ans += 1
        r -= 1
        l += 1
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
s = input()
l = len(s)
f = 0
for i in range(1 << l + 1):
    ans = ""
    for j in range(l + 1):
        if i >> j & 1: ans += 'A'
        if j < l: ans += s[j]
    if ans == "AKIHABARA":
        f = 1
if f: print("YES")
else: print("NO")

Fixed submission:
s = input()
l = len(s)
f = 0
if l <= 9:
    for i in range(1 << l + 1):
        ans = ""
        for j in range(l + 1):
            if i >> j & 1: ans += 'A'
            if j < l: ans += s[j]
        if ans == "AKIHABARA":
            f = 1
else: f = 0

if f: print("YES")
else: print("NO")
Buggy python submission (verdict: Runtime Error):
s = input()
print('Yes' if s[2]==s[3] && s[4]==s[5] else 'No')

Fixed submission:
s = input()
print('Yes' if s[2]==s[3] and s[4]==s[5] else 'No')
Buggy python submission (verdict: Runtime Error):
a,b=map(int,input(),split())
print(a/b);

Fixed submission:
t,x=map(int,input().split())
print(t/x)
Buggy python submission (verdict: Runtime Error):
a=int(input())
b=0;
if a==3:
  b=1
elif a==5:
  b=1:
elif a==7:
  b=1:
if b==1:
  print("YES")
else:
  print("NO")

Fixed submission:
print('YES' if int(input()) in [3,5,7] else 'NO')
Buggy python submission (verdict: Runtime Error):
a=gets.split.map &:to_i
print(a.sum-a.max)

Fixed submission:
a,b,c=map(int,input().split())
print(min(a+b,a+c,b+c))
Buggy python submission (verdict: Runtime Error):
A,B,C=map(int,input().split())
if b-a==c-b:
  print("YES")
else:
  print("NO")

Fixed submission:
a,b,c=map(int,input().split())
if b-a==c-b:
  print("YES")
else:
  print("NO")
Buggy python submission (verdict: Runtime Error):
k,x=map(int, input()split())

if 500*k >= x:
    print('Yes')
else:
    print('No')

Fixed submission:
k,x=map(int, input().split())

if 500*k >= x:
    print('Yes')
else:
    print('No')
Buggy python submission (verdict: Runtime Error):
s,t = map(input().split())

print(t + s)

Fixed submission:
s,t = map(str, input().split())

print(t + s)

Buggy python submission (verdict: Runtime Error):
s = input()
t = input()

print(t + s)

Fixed submission:
s,t = map(str, input().split())

print(t + s)
Buggy python submission (verdict: Runtime Error):
x,a = map(int, input().split())

if x < a:
    print(0)
else
    print(10)

Fixed submission:
x,a = map(int, input().split())

if x < a:
    print(0)
else:
    print(10)
Buggy python submission (verdict: Runtime Error):
s = input()

if s[0] != 'A':
        print('WA')
        exit()

if s[2:-1].count('C') != 1:
        print('WA')
        exit()

s = s.replace('C',"")

if s[1:].isLower():
        print('AC')
else:
        print('WA')

Fixed submission:
s = input()

if s[0] != 'A':
        print('WA')
        exit()

if s[2:-1].count('C') != 1:
        print('WA')
        exit()

s = s.replace('C',"")

if s[1:].islower():
        print('AC')
else:
        print('WA')
Buggy python submission (verdict: Runtime Error):
s = str(input())
ans=0
for in range s:
    if '+' Then:
        ans += 1
    else:
        ans -= 1

print(ans)

Fixed submission:
s = str(input())
ans=0
for x in range(len(s)):
    if s[x] == '+':
        ans += 1
    else:
        ans -= 1

print(ans)
Buggy python submission (verdict: Runtime Error):
a = int(input())
b = int(input())

s = 'error'

if a+ b < 10:
        s = a+b

print(s)

Fixed submission:
a,b = map(int,input().split())

s = 'error'

if a+ b < 10:
        s = a+b

print(s)
Buggy python submission (verdict: Runtime Error):
n,k=map(int,input().split())

class SegmentTree:
    def __init__(self,n,ele):

        self.ide_ele = ele

        self.num =2**(n-1).bit_length()
        self.seg=[self.ide_ele]*2*self.num


    #####segfunc######
    #クエリに応じて変える
    def segfunc(self,x,y):
        return max(x,y)

    def init(self,init_val):
        #set_val
        for i in range(n):
            self.seg[i+self.num-1]=init_val[i]    
        #built
        for i in range(self.num-2,-1,-1) :
            self.seg[i]=self.segfunc(self.seg[2*i+1],self.seg[2*i+2]) 
        
    def update(self,k,x):
        k += self.num-1
        self.seg[k] = x
        while k:
            k = (k-1)//2
            self.seg[k] = self.segfunc(self.seg[k*2+1],self.seg[k*2+2])
        
    def query(self,p,q):
        if q<=p:
            return self.ide_ele
        p += self.num-1
        q += self.num-2
        res=self.ide_ele
        while q-p>1:
            if p&1 == 0:
                res = self.segfunc(res,self.seg[p])
            if q&1 == 1:
                res = self.segfunc(res,self.seg[q])
                q -= 1
            p = p//2
            q = (q-1)//2
        if p == q:
            res = self.segfunc(res,self.seg[p])
        else:
            res = self.segfunc(self.segfunc(res,self.seg[p]),self.seg[q])
        return res

st=SegmentTree(300001,0)
dp=[0]*n
for i in range(n):
    a=int(input())
    dp[i]=max(dp[i],st.query(a-k,a+k+1)+1)
    st.update(a,dp[i])
    dp[i]=max(dp[i],st.query(0,300001))
print(dp[n-1])

Fixed submission:
n,k=map(int,input().split())

class SegmentTree:
    def __init__(self,n,ele):

        self.ide_ele = ele

        self.num =2**(n-1).bit_length()
        self.seg=[self.ide_ele]*2*self.num


    #####segfunc######
    #クエリに応じて変える
    def segfunc(self,x,y):
        return max(x,y)

    def init(self,init_val):
        #set_val
        for i in range(n):
            self.seg[i+self.num-1]=init_val[i]    
        #built
        for i in range(self.num-2,-1,-1) :
            self.seg[i]=self.segfunc(self.seg[2*i+1],self.seg[2*i+2]) 
        
    def update(self,k,x):
        k += self.num-1
        self.seg[k] = x
        while k:
            k = (k-1)//2
            self.seg[k] = self.segfunc(self.seg[k*2+1],self.seg[k*2+2])
        
    def query(self,p,q):
        if q<=p:
            return self.ide_ele
        p += self.num-1
        q += self.num-2
        res=self.ide_ele
        while q-p>1:
            if p&1 == 0:
                res = self.segfunc(res,self.seg[p])
            if q&1 == 1:
                res = self.segfunc(res,self.seg[q])
                q -= 1
            p = p//2
            q = (q-1)//2
        if p == q:
            res = self.segfunc(res,self.seg[p])
        else:
            res = self.segfunc(self.segfunc(res,self.seg[p]),self.seg[q])
        return res

st=SegmentTree(300001,0)
dp=[0]*n
for i in range(n):
    a=int(input())
    dp[i]=max(dp[i],st.query(max(0,a-k),min(300000,a+k)+1)+1)
    st.update(a,dp[i])
    dp[i]=max(dp[i],st.query(0,300001))
print(dp[n-1])
Buggy python submission (verdict: Runtime Error):
n,k=map(int,input().split())
p=list(map(int,input().split()))
c=list(map(int,input().split()))
ans=-10**18
flag=dict()
for i in range(n):
    if i in flag:
        continue
    cur=i
    accum=[]
    flag[cur]=0
    s=0
    while flag[cur]<2:
        cur=p[cur]-1
        s+=c[cur]
        accum.append(s)
        if cur not in flag:
            flag[cur]=0
        else:
            flag[cur]+=1
    l=len(accum)//2
    accum=[0]+accum
    for x in range(1,l+1):
        if accum[x+l-1]-accum[x-1]<=0:
            ans=max(ans,max(accum[x:x+min(k,l)])-accum[x-1])
        else:
            a=max(accum[x:x+l])-accum[x-1]
            b=max(accum[x:x+k%l])-accum[x-1]
            d=accum[x+l-1]-accum[x-1]
            ans=max(ans,max(k//l*d+b,max(k//l-1,0)*d+a))
print(ans)

Fixed submission:
n,k=map(int,input().split())
p=list(map(int,input().split()))
c=list(map(int,input().split()))
ans=-10**18
flag=dict()
for i in range(n):
    if i in flag:
        continue
    cur=i
    accum=[]
    flag[cur]=0
    s=0
    while flag[cur]<2:
        cur=p[cur]-1
        s+=c[cur]
        accum.append(s)
        if cur not in flag:
            flag[cur]=0
        else:
            flag[cur]+=1
    l=len(accum)//2
    accum=[0]+accum
    #print(accum)
    for x in range(1,l+1):
        if accum[x+l-1]-accum[x-1]<=0 or k//l<1:
            ans=max(ans,max(accum[x:x+min(k,l)])-accum[x-1])
        else:
            a=max(accum[x:x+l-1])-accum[x-1]
            d=accum[x+l-1]-accum[x-1]
            if k%l!=0:
                b=max(accum[x:x+k%l])-accum[x-1]
                ans=max(ans,max(k//l*d,k//l*d+b,(k//l-1)*d+a))
            else:
                b=max(accum[x:x+l-1])-accum[x-1]
                ans=max(ans,max(k//l*d,(k//l-1)*d+a))
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
n=int(input())
for num in range(1,n+1):
    ans=0
    for x in range(1,int(num**0.5)+1):
        for y in range(1, int(num**0.5)+1):
            for z in range(1,int(num**0.5)+1):
                if x**2+y**2+z**2+x*y+y*z+x*z==num:
                    ans+=1
    print(ans)

Fixed submission:
n=int(input())
lis=[0]*(n+1)
for x in range(1,101):
    for y in range(1,101):
        for z in range(1,101):
            k=x**2+y**2+z**2+x*y+y*z+x*z
            if k<=n:
                lis[k]+=1
for i in range(1,n+1):
    print(lis[i])
Buggy python submission (verdict: Time Limit Exceeded):
n=int(input())
x=input()
cntm=0
cntp=0
fn=0
xi=[0]*n
ans=[0]*n
for i in range(n):
    if x[i]=="1":
        fn+=1
for i in reversed(range(n)):
    if x[i]=="1":
        cntp+=pow(2,n-i-1,fn+1)
        cntp%=fn+1
        if fn>1:
            cntm+=pow(2,n-i-1,fn-1)
            cntm%=fn-1
for i in reversed(range(n)):
    if x[i]=="1":
        if fn>1:
            xi[i]=(cntm-pow(2,n-i-1,fn-1))%(fn-1)
            ans[i]+=1
    else:
        xi[i]=(cntp+pow(2,n-i-1,fn+1))%(fn+1)
        ans[i]+=1
#print(xi)
for i in range(n):
    num=xi[i]
    while num>0:
        cnt=0
        for j in range(31):
            if (num>>j)&1:
                cnt+=1
        num%=cnt
        ans[i]+=1
    print(ans[i])

Fixed submission:
n=int(input())
x=input()
cntm=0
cntp=0
fn=0
xi=[0]*n
ans=[0]*n
for i in range(n):
    if x[i]=="1":
        fn+=1
for i in reversed(range(n)):
    if x[i]=="1":
        cntp+=pow(2,n-i-1,fn+1)
        cntp%=fn+1
        if fn>1:
            cntm+=pow(2,n-i-1,fn-1)
            cntm%=fn-1
for i in reversed(range(n)):
    if x[i]=="1":
        if fn>1:
            xi[i]=(cntm-pow(2,n-i-1,fn-1))%(fn-1)
            ans[i]+=1
    else:
        xi[i]=(cntp+pow(2,n-i-1,fn+1))%(fn+1)
        ans[i]+=1
#print(xi)
for i in range(n):
    num=xi[i]
    while num>0:
        cnt=0
        for j in range(31):
            if (num>>j)&1:
                cnt+=1
        num%=cnt
        ans[i]+=1
    print(ans[i])
Buggy python submission (verdict: Runtime Error):
n,k=map(int,input().split())
a=list(map(int,input().split()))
mod=10**9+7
ans=1
if n==k or max(a)<=0 or min(a)>0:
    a.sort(reverse=True)
    for i in range(k):
        ans*=a[i]
        ans%=mod
    print(ans)
    exit()
pos,neg=[],[]
for num in a:
    if num<0:
        neg.append(-num)
    else:
        pos.append(num)
neg.sort(reverse=True)
pos.sort(reverse=True)
nn=len(neg)
np=len(pos)
cand=[]
i,j=0,0
while k>0:
    if i<np-1 and j<nn-1:
        if k>=2:
            if pos[i+1]*pos[i]<neg[i+1]*neg[i]:
                cand.append(-neg[j+1])
                cand.append(-neg[j])
                k-=2
                j+=2
            else:
                cand.append(pos[i])
                k-=1
                i+=1
        else:
            cand.append(pos[i])
            k-=1
            i+=1
    elif j>=nn-1:
        cand.append(pos[i])
        k-=1
        i+=1
    elif i==np-1:
        if k==1:
            cand.append(pos[i])
            i+=1
            k-=1
        else:
            cand.append(-neg[j+1])
            cand.append(-neg[j])
            j+=2
            k-=2
    elif i==np:
        cand.append(-neg[j+1])
        cand.append(-neg[j])
        j+=2
        k-=2
for num in cand:
    ans*=num
    ans%=mod
print(ans)
    

Fixed submission:
n,k=map(int,input().split())
a=list(map(int,input().split()))
mod=10**9+7
ans=1
if n==k or max(a)<0 or min(a)>=0:
    if max(a)<0 and k%2==0:
        a.sort()
    else:
        a.sort(reverse=True)
    for i in range(k):
        ans*=a[i]
        ans%=mod
    print(ans)
    exit()
pos,neg=[],[]
for num in a:
    if num<0:
        neg.append(-num)
    else:
        pos.append(num)
neg.sort(reverse=True)
pos.sort(reverse=True)
nn=len(neg)
np=len(pos)
cand=[]
i,j=0,0
while k>0:
    if i<np-1 and j<nn-1:
        if k>=2:
            if pos[i+1]*pos[i]<neg[j+1]*neg[j]:
                cand.append(-neg[j+1])
                cand.append(-neg[j])
                k-=2
                j+=2
            else:
                cand.append(pos[i])
                k-=1
                i+=1
        else:
            cand.append(pos[i])
            k-=1
            i+=1
    elif j>=nn-1:
        cand.append(pos[i])
        k-=1
        i+=1
    elif i==np-1:
        if k==1:
            cand.append(pos[i])
            i+=1
            k-=1
        else:
            cand.append(-neg[j+1])
            cand.append(-neg[j])
            j+=2
            k-=2
    elif i==np:
        cand.append(-neg[j+1])
        cand.append(-neg[j])
        j+=2
        k-=2
for num in cand:
    ans*=num
    ans%=mod
print(ans)
Buggy python submission (verdict: Runtime Error):
n,k=map(int,input().split())
a=list(map(int,input().split()))
for _ in range(min(k,41)):
    imos=[0]*(n+1)
    for i in range(n):
        imos[max(0,i-a[i])]+=1
        imos[min(n-1,i+a[i])+1]-=1
    for i in range(n-1):
        imos[i+1]+=imos[i]
    for i in range(n):
        a[i]=imos[i]
print(*a)

Fixed submission:
s=input()
print(s[:3])
Buggy python submission (verdict: Time Limit Exceeded):
n,k=map(int,input().split())
a=list(map(int,input().split()))
imos=[0]*(n+1)
for _ in range(min(k,41)):
    imos=[0]*(n+1)
    for i in range(n):
        imos[max(0,i-a[i])]+=1
        imos[min(n-1,i+a[i])+1]-=1
    for i in range(n-1):
        imos[i+1]+=imos[i]
    for i in range(n):
        a[i]=imos[i]
print(*a)

Fixed submission:
n,k=map(int,input().split())
a=list(map(int,input().split()))
for _ in range(min(k,41)):
    imos=[0]*(n+1)
    for i in range(n):
        imos[max(0,i-a[i])]+=1
        imos[min(n-1,i+a[i])+1]-=1
    for i in range(n-1):
        imos[i+1]+=imos[i]
    for i in range(n):
        a[i]=imos[i]
print(*a)
Buggy python submission (verdict: Runtime Error):
n=int(input())
p=[0]*(10**6+1)
for i in range(1,int(n**0.5)+1):
    cnt=0
    while n%(i+1)==0:
        n//=i+1
        cnt+=1
    p[i+1]+=cnt
if n>1:
    p[n]+=1
ans=0
for i in p:
    for j in range(1,44):
        if j*(j+1)//2>i:
            ans+=j-1
            break
print(ans)


Fixed submission:
n=int(input())
d=dict()
for i in range(1,int(n**0.5)+1):
    cnt=0
    while n%(i+1)==0:
        n//=i+1
        cnt+=1
    d[i+1]=cnt
if n>1:
    if n in d:
        d[n]+=1
    else:
        d[n]=1
ans=0
d=list(d.items())
for i,r in d:
    for j in range(1,44):
        if j*(j+1)//2>r:
            ans+=j-1
            break
print(ans)

Buggy python submission (verdict: Runtime Error):
n=int(input())
p=[0]*(10**6+1)
for i in range(1,int(n**0.5)+1):
    cnt=0
    while n%(i+1)==0:
        n//=i+1
        cnt+=1
    p[i+1]+=cnt
if n>1:
    p[n]+=1
ans=0
for i in p:
    for j in range(1,44):
        if j*(j+1)//2>i:
            ans+=j-1
            break
print(ans)

Fixed submission:
n=int(input())
d=dict()
for i in range(1,int(n**0.5)+1):
    cnt=0
    while n%(i+1)==0:
        n//=i+1
        cnt+=1
    d[i+1]=cnt
if n>1:
    if n in d:
        d[n]+=1
    else:
        d[n]=1
ans=0
d=list(d.items())
for i,r in d:
    for j in range(1,44):
        if j*(j+1)//2>r:
            ans+=j-1
            break
print(ans)
Buggy python submission (verdict: Runtime Error):
k=int(input())
s=input()
if len(s)>k:
    print(s[:k]+"...")
else:
    print(s[:k])

Fixed submission:
n=input()
if n[-1]=="3":
    print("bon")
elif n[-1]=="0" or n[-1]=="1" or n[-1]=="6" or n[-1]=="8":
    print("pon")
else:
    print("hon")
Buggy python submission (verdict: Runtime Error):
n,k=map(int,input().split())
a=list(map(int,input().split()))
i=0
s=set()
s.add(1)
order=[1]
while 1:
    if a[i] in s:
        order.append(a[i])
        break
    else:
        order.append(a[i])
        s.add(a[i])
    i=a[i]-1
for i in range(len(order)):
    if order[-1]==order[i]:
        idx=i
        break
#print(order)
if idx==0:
    cnt=len(order)-(idx+1)
else:
    cnt=len(order)-idx
if len(order)>k:
    print(order[k])
else:
    order=order[idx+1:]
    #print(order)
    k%=cnt
    if k>=1:
        k-=1
    else:
        k=cnt-1
    #print(k)
    print(order[k])
#print(order)


Fixed submission:
n,k=map(int,input().split())
a=list(map(int,input().split()))
i=0
s=set()
s.add(1)
order=[1]
while 1:
    if a[i] in s:
        order.append(a[i])
        break
    else:
        order.append(a[i])
        s.add(a[i])
    i=a[i]-1
for i in range(len(order)):
    if order[-1]==order[i]:
        idx=i
        break
#print(order)
cnt=len(order)-(idx+1)
if len(order)>k:
    print(order[k])
else:
    k-=len(order)
    order=order[idx+1:]
    #print(cnt)
    #print(order)
    k%=cnt
    #print(k)
    print(order[k])
#print(order)
Buggy python submission (verdict: Runtime Error):
import sys
input=sys.stdin.readline
s=input()
n=len(s)
s=s[::-1]
accum=[0]*n
p=2019
d=dict()
for i in range(n):
    accum[i]=int(s[i])*pow(10,i,p)%p
for i in range(n-1):
    accum[i+1]+=accum[i]
    accum[i+1]%=p
accum[-1]%=p
ans=0
#print(accum)
for i in range(n):
    #print(d)
    if accum[i] not in d:
        if accum[i]==0:
            ans+=1
        d[accum[i]]=1
    else:
        if accum[i]==0:
            ans+=1
        ans+=d[accum[i]]
        d[accum[i]]+=1
print(ans)


Fixed submission:
s=input()
n=len(s)
s=s[::-1]
accum=[0]*n
p=2019
d=dict()
for i in range(n):
    accum[i]=int(s[i])*pow(10,i,p)%p
for i in range(n-1):
    accum[i+1]+=accum[i]
    accum[i+1]%=p
accum[-1]%=p
ans=0
#print(accum)
for i in range(n):
    #print(d)
    if accum[i] not in d:
        if accum[i]==0:
            ans+=1
        d[accum[i]]=1
    else:
        if accum[i]==0:
            ans+=1
        ans+=d[accum[i]]
        d[accum[i]]+=1
print(ans)

Buggy python submission (verdict: Runtime Error):
import sys
input=sys.stdin.readline
s=input()
n=len(s)
s=s[::-1]
accum=[0]*n
p=2019
d=dict()
for i in range(n):
    accum[i]=int(s[i])*pow(10,i,p)%p
for i in range(n-1):
    accum[i+1]+=accum[i]
    accum[i+1]%=p
accum[-1]%=p
ans=0
#print(accum)
for i in range(n):
    #print(d)
    if accum[i] not in d:
        if accum[i]==0:
            ans+=1
        d[accum[i]]=1
    else:
        if accum[i]==0:
            ans+=1
        ans+=d[accum[i]]
        d[accum[i]]+=1
print(ans)

Fixed submission:
s=input()
n=len(s)
s=s[::-1]
accum=[0]*n
p=2019
d=dict()
for i in range(n):
    accum[i]=int(s[i])*pow(10,i,p)%p
for i in range(n-1):
    accum[i+1]+=accum[i]
    accum[i+1]%=p
accum[-1]%=p
ans=0
#print(accum)
for i in range(n):
    #print(d)
    if accum[i] not in d:
        if accum[i]==0:
            ans+=1
        d[accum[i]]=1
    else:
        if accum[i]==0:
            ans+=1
        ans+=d[accum[i]]
        d[accum[i]]+=1
print(ans)

Buggy python submission (verdict: Runtime Error):
import sys
input=sys.stdin.readline
s=input()
n=len(s)
s=s[::-1]
accum=[0]*n
p=2019
d=dict()
for i in range(n):
    accum[i]=int(s[i])*pow(10,i,p)%p
for i in range(n-1):
    accum[i+1]+=accum[i]
    accum[i+1]%=p
accum[-1]%=p
ans=0
#print(accum)
for i in range(n):
    #print(d)
    if accum[i] not in d:
        if accum[i]==0:
            ans+=1
        d[accum[i]]=1
    else:
        if accum[i]==0:
            ans+=1
        ans+=d[accum[i]]
        d[accum[i]]+=1
print(ans)

Fixed submission:
s=input()
n=len(s)
s=s[::-1]
accum=[0]*n
p=2019
d=dict()
for i in range(n):
    accum[i]=int(s[i])*pow(10,i,p)%p
for i in range(n-1):
    accum[i+1]+=accum[i]
    accum[i+1]%=p
accum[-1]%=p
ans=0
#print(accum)
for i in range(n):
    #print(d)
    if accum[i] not in d:
        if accum[i]==0:
            ans+=1
        d[accum[i]]=1
    else:
        if accum[i]==0:
            ans+=1
        ans+=d[accum[i]]
        d[accum[i]]+=1
print(ans)