qyliang/CodeNanoFix huggingface dataset:
Buggy code:
def cin():  return list(map(int,input().split()))

N, M, Q = list(map(int,input().split()))
v = [[0 for _ in range(N)] for _ in range(N)]
p = [[0 for _ in range(2)] for _ in range(N)]

for i in range(M):
    a, b = cin()
    v[a - 1][b - 1] += 1;

for i in range(Q):
    a, b = cin()
    p[i][0] = a - 1;
    p[i][1] = b - 1;
    
def d2_add(a):
    w = len(a[0])
    h = len(a)
    da = [[0] * w for j in range(h)]
    da[0][0] = a[0][0]
    for i in range(1, w):
        da[0][i] = da[0][i - 1] + a[0][i]
    for i in range(1, h):
        cnt_w = 0
        for j in range(w):
            cnt_w += a[i][j]
            da[i][j] = da[i - 1][j] + cnt_w
    return da

def d2_calc(da, p, q, x, y):
    if p > x or q > y:  return 0
    if p == 0 and q == 0:  return da[x][y]
    if p == 0:  return da[x][y] - da[x][q - 1]
    if q == 0:  return da[x][y] - da[p - 1][y]
    return da[x][y] - da[p - 1][y] - da[x][q - 1] + da[p - 1][q - 1]

ret = d2_add(a)
for i in range(Q):
    ans = d2_calc(ret, p[i], p[i], q[i], q[i])
    print(ans)

Fixed code:
def cin():  return list(map(int,input().split()))

N, M, Q = list(map(int,input().split()))
v = [[0 for _ in range(N)] for _ in range(N)]
p = [[0 for _ in range(2)] for _ in range(Q)]

for _ in range(M):
    a, b = cin()
    v[a - 1][b - 1] += 1;

for i in range(Q):
    a, b = cin()
    p[i][0] = a - 1;
    p[i][1] = b - 1;
    
def d2_add(a):
    w = len(a[0])
    h = len(a)
    da = [[0] * w for j in range(h)]
    da[0][0] = a[0][0]
    for i in range(1, w):
        da[0][i] = da[0][i - 1] + a[0][i]
    for i in range(1, h):
        cnt_w = 0
        for j in range(w):
            cnt_w += a[i][j]
            da[i][j] = da[i - 1][j] + cnt_w
    return da

def d2_calc(da, p, q, x, y):
    if p > x or q > y:  return 0
    if p == 0 and q == 0:  return da[x][y]
    if p == 0:  return da[x][y] - da[x][q - 1]
    if q == 0:  return da[x][y] - da[p - 1][y]
    return da[x][y] - da[p - 1][y] - da[x][q - 1] + da[p - 1][q - 1]

ret = d2_add(v)
for i in range(Q):
    ans = d2_calc(ret, p[i][0], p[i][0], p[i][1], p[i][1])
    print(ans)
Buggy code:
import sys, re
from collections import deque, defaultdict, Counter
from math import ceil, sqrt, hypot, factorial, pi, sin, cos, tan, asin, acos, atan, radians, degrees, log2, gcd
from itertools import accumulate, permutations, combinations, combinations_with_replacement, product, groupby
from operator import itemgetter, mul
from copy import deepcopy
from string import ascii_lowercase, ascii_uppercase, digits
from bisect import bisect, bisect_left, insort, insort_left
from heapq import heappush, heappop
from functools import reduce
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def ZIP(n): return zip(*(MAP() for _ in range(n)))
sys.setrecursionlimit(10 ** 9)
INF = float('inf')
mod = 10 ** 9 + 7 
#mod = 998244353
from decimal import *
#import numpy as np
#decimal.getcontext().prec = 10

N, M, Q = MAP()
LR = [LIST() for _ in range(M)]
pq = [LIST() for _ in range(Q)]

l = [0]*(N+2)
r = [0]*(N+2)
for L, R in LR:
	l[L] += 1
	r[R] += 1

l = list(accumulate(l))
r = list(accumulate(r))

for p, q in pq:
	ans = M - max(l[p-1], r[-1]-r[q])
	print(ans)


Fixed code:
import sys, re
from collections import deque, defaultdict, Counter
from math import ceil, sqrt, hypot, factorial, pi, sin, cos, tan, asin, acos, atan, radians, degrees, log2, gcd
from itertools import accumulate, permutations, combinations, combinations_with_replacement, product, groupby
from operator import itemgetter, mul
from copy import deepcopy
from string import ascii_lowercase, ascii_uppercase, digits
from bisect import bisect, bisect_left, insort, insort_left
from heapq import heappush, heappop
from functools import reduce
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def ZIP(n): return zip(*(MAP() for _ in range(n)))
sys.setrecursionlimit(10 ** 9)
INF = float('inf')
mod = 10 ** 9 + 7 
#mod = 998244353
from decimal import *
#import numpy as np
#decimal.getcontext().prec = 10

N, M, Q = MAP()
LR = [LIST() for _ in range(M)]
pq = [LIST() for _ in range(Q)]

x = [[0]*(N+1) for _ in range(N+1)]

for L, R in LR:
	x[L][R] += 1

for l in range(N+1):
	x[l] = list(accumulate(x[l]))

for l in range(1, N+1):
	for r in range(N+1):
		x[l][r] += x[l-1][r]
		
for p, q in pq:
	print(x[q][q] - x[q][p-1] - x[p-1][q] + x[p-1][p-1])
Buggy code:
import sys
def input(): return sys.stdin.readline().strip()
def mapint(): return map(int, input().split())
sys.setrecursionlimit(10**9)

N, M, Q = mapint()
query = [[0]*(N+1) for _ in range(N+1)]
for _ in range(M):
    l, r = mapint()
    query[l][r] += 1
from itertools import accumulate
for i in range(N+1):
    query[i] = list(accumulate(query[i]))
for i in range(1, N+1):
    for j in range(N+1):
        query[i][j] += query[i-1][j]

for _ in range(Q):
    p, q = mapint()
    print(query[N][q]-query[p-1][r-1])

Fixed code:
import sys
def input(): return sys.stdin.readline().strip()
def mapint(): return map(int, input().split())
sys.setrecursionlimit(10**9)

N, M, Q = mapint()
query = [[0]*(N+1) for _ in range(N+1)]
for _ in range(M):
    l, r = mapint()
    query[l][r] += 1

from itertools import accumulate
for i in range(N+1):
    query[i] = list(accumulate(query[i]))
for i in range(1, N+1):
    for j in range(N+1):
        query[i][j] += query[i-1][j]

for _ in range(Q):
    p, q = mapint()
    print(query[N][q]-query[p-1][q])
Buggy code:
n,m,q=map(int,input().split())
d=[[0]*(n+1) for _ in range(n+1)]

for mm in range(m):
  l,r=map(int,input().split())
  d[l][r]+=1

for i in range(n):
  for j in range(n+1):
    d[i+1][j]+=d[i][j]

for j in range(n+1):
  for i in range(n):
    d[j][i+1]=d[j][i]
    
for qq in range(q):
  x,y=map(int,input().split())
  print(d[y][y]-d[y][x-1]-d[x-1][y]+d[x-1][x-1])

Fixed code:
n,m,q=map(int,input().split())
d=[[0]*(n+1) for _ in range(n+1)]
 
for mm in range(m):
  l,r=map(int,input().split())
  d[l][r]+=1

for i in range(n):
  for j in range(n+1):
    d[i+1][j]+=d[i][j]
 
for j in range(n+1):
  for i in range(n):
    d[j][i+1]+=d[j][i]

for qq in range(q):
  x,y=map(int,input().split())
  print(d[y][y]-d[y][x-1]-d[x-1][y]+d[x-1][x-1])
Buggy code:
n,m,q=map(int,input().split())
ans=[[0]*(n+1) for __ in range(n+1)]
for _ in range(m):
  l,r=map(int,input().split())
  ans[l][r]+=1
for i in range(n+1):
  for j in range(n):
    ans[i][j+1]+=ans[i][j]
for i in range(n):
  for j in range(n+1):
    ans[i+1][j]+=ans[i][j]
for qq in q:
  p,q=map(int,input().split())
  print(ans[q][q]-ans[p-1][q]-ans[p][q-1]+ans[p][p])

Fixed code:
n,m,qu=map(int,input().split())
ans=[[0]*(n+1) for __ in range(n+1)]
for _ in range(m):
  l,r=map(int,input().split())
  ans[l][r]+=1
for i in range(n+1):
  for j in range(n):
    ans[i][j+1]+=ans[i][j]
for i in range(n):
  for j in range(n+1):
    ans[i+1][j]+=ans[i][j]
for qq in range(qu):
  p,q=map(int,input().split())
  print(ans[q][q]-ans[p-1][q]-ans[q][p-1]+ans[p-1][p-1])
Buggy code:
N, M, Q = map(int, input().split())
areas = [[0 for _ in range(N + 2)] for _ in range(N + 2)]

for _ in range(M):
    left, right = map(int, input().split())
    areas[left][right] += 1
# print(areas)
for i in range(1, N + 2):
    for j in range(1, N + 2):
        areas[i][j] += areas[i][j - 1]
print(areas)
for _ in range(Q):
    left, right = map(int, input().split())
    cost = 0
    for i in range(left, right + 1):
        cost += areas[i][right] - areas[i][left - 1]
    print(cost)


Fixed code:
N, M, Q = map(int, input().split())
bord = [[0 for _ in range(N + 2)] for _ in range(N + 2)]

for _ in range(M):
    left, right = map(int, input().split())
    bord[left][right] += 1
# print(bord)
for i in range(1, N + 2):
    for j in range(1, N + 2):
        bord[i][j] += bord[i][j - 1]
# print(bord)
for _ in range(Q):
    left, right = map(int, input().split())
    cost = 0
    for i in range(left, right + 1):
        cost += bord[i][right] - bord[i][left - 1]
    print(cost)
Buggy code:
def main():
    n, m, Q = map(int, input().split())
    Train= [[0 for _ in range(n)] for _ in range(n)]
    
    for i in range(m):
        l, r = map(int, input().split())
        l, r = l - 1, r - 1
        Train[l][r] += 1
    
    P_Train = [[0 for _ in range(n)] for _ in range(n)]
    for i in range(n):
        tmp = 0
        for j in range(n):
            tmp += Train[i][j]
            P_Train[i][j] = tmp

    for i in range(Q):
        p, q = map(int, input().split())
        p, q = p - 1, q - 1
        ans = solve(P_Train, n, p, q)
        print(ans)

def solve(P_Train, n, p, q):
    ans = 0
    for i in range(p, q + 1):
        ans += P_Train[i][q] - P_Train[i][p]
    return ans


if __name__ == '__main__':
    main()

Fixed code:
def main():
    n, m, Q = map(int, input().split())
    Train= [[0 for _ in range(n)] for _ in range(n)]
    
    for i in range(m):
        l, r = map(int, input().split())
        l, r = l - 1, r - 1
        Train[l][r] += 1
    
    P_Train = [[0 for _ in range(n)] for _ in range(n)]
    for i in range(n):
        tmp = 0
        for j in range(n):
            tmp += Train[i][j]
            P_Train[i][j] = tmp

    for i in range(Q):
        p, q = map(int, input().split())
        p, q = p - 1, q - 1
        ans = solve(P_Train, n, p, q)
        print(ans)

def solve(P_Train, n, p, q):
    ans = 0
    for i in range(p, q + 1):
        if  p - 1 < 0:
            ans += P_Train[i][q]
        else:
            ans += P_Train[i][q] - P_Train[i][p - 1]
    return ans


if __name__ == '__main__':
    main()
Buggy code:
N, M, Q = map(int, input().split())
X = [[0 for _ in range(N+1)] for _ in range(N+1)]
for i in range(M):
    L, R = map(int, input().split())
    X[L][R] = 1

# for i in range(N):
#     for j in range(N):
#         X[i+1][j+1] += X[i][j+1] + X[i+1][j]
# print(*X, sep='\n')
# print('')

for i in range(N+1):
    for j in range(N):
        X[i][j+1] += X[i][j]
# print(*X, sep='\n')

for i in range(N+1):
    for j in range(N):
        # print(i, j)
        X[j+1][i] += X[j][i]
ans = []
for _ in range(Q):
    p, q = map(int, input().split())
    ans.append(X[q][q] - X[q][p-1] - X[p-1][q] + X[p-1][p-1])
    # print(ans)
# print(*X, sep='\n')
print(*ans, sep='\n')

Fixed code:
N, M, Q = map(int, input().split())

A = [[0] * (N + 1) for _ in range(N + 1)]
for _ in range(M):
    L, R = map(int, input().split())
    A[L][R] += 1

for i in range(1, N + 1):
    for j in range(1, N + 1):
        A[i][j] += A[i][j - 1]
for j in range(1, N + 1):
    for i in range(1, N + 1):
        A[i][j] += A[i - 1][j]

ans = []
for _ in range(Q):
    p, q = map(int, input().split())
    p -= 1
    ans.append(A[q][q] - A[q][p] - A[p][q] + A[p][p])
print(*ans, sep='\n')
Buggy code:
N, M, Q = map(int, input().split())
from itertools import accumulate
wa = [[0]*(N+1) for _ in range(N+1)]
import numpy as np

for _ in range(M):
    l, r = map(int, input().split())
    wa[l][r] += 1

cwa = np.cumsum(np.cumsum(wa, axis=0), axis=1).tolist()
for i in range(Q):
    p, q = map(int, input().split())
    ans = cwa[N][q]-cwa[p-1][r]
    print(ans)


Fixed code:
N, M, Q = map(int, input().split())
wa = [[0]*(N+1) for _ in range(N+1)]
import numpy as np

for _ in range(M):
    l, r = map(int, input().split())
    wa[l][r] += 1

cwa = np.cumsum(np.cumsum(wa, axis=0), axis=1).tolist()
for i in range(Q):
    p, q = map(int, input().split())
    ans = cwa[N][q]-cwa[p-1][q]
    print(ans)
Buggy code:
N, M, Q = map(int, input().split())
X = [[0 for _ in range(N+1)] for _ in range(N+1)]
for i in range(M):
    L, R = map(int, input().split())
    X[L][R] = 1

# for i in range(N):
#     for j in range(N):
#         X[i+1][j+1] += X[i][j+1] + X[i+1][j]
# print(*X, sep='\n')
# print('')

for i in range(N+1):
    for j in range(N):
        X[i][j+1] += X[i][j]
# print(*X, sep='\n')

for i in range(N+1):
    for j in range(N):
        # print(i, j)
        X[j+1][i] += X[j][i]

for _ in range(Q):
    p, q = map(int, input().split())
    ans = X[q][q] - X[q][p-1] - X[p-1][q] + X[p-1][p-1]
    print(ans)
# print(*X, sep='\n')


Fixed code:
N, M, Q = map(int, input().split())
X = [[0 for _ in range(N+1)] for _ in range(N+1)]
for i in range(M):
    L, R = map(int, input().split())
    X[L][R] += 1

# for i in range(N):
#     for j in range(N):
#         X[i+1][j+1] += X[i][j+1] + X[i+1][j]
# print(*X, sep='\n')
# print('')

for i in range(N+1):
    for j in range(N):
        X[i][j+1] += X[i][j]

for i in range(N+1):
    for j in range(N):
        X[j+1][i] += X[j][i]
# print(*X, sep='\n')

ans = []
for _ in range(Q):
    p, q = map(int, input().split())
    ans.append(X[q][q] - X[q][p-1] - X[p-1][q] + X[p-1][p-1])

print(*ans, sep='\n')
Buggy code:
import sys
input = sys.stdin.buffer.readline

n, m, q = map(int, input().split())

class TwoDimSum():
    def __init__(self, h, w):
        self.counts = [[0 for _ in range(w+1)] for _ in range(h+1)]
        self.s = [[0 for _ in range(w+1)] for _ in range(h+1)]

    def add_count(self, x, y):
        # 0-indexed
        self.counts[y+1][x+1] += 1

    def build(self):
        for i in range(h):
            for j in range(w):
                self.s[i+1][j+1] = self.s[i][j+1] + self.s[i+1][j] - self.s[i][j] + self.counts[i][j]

    def solve(self, x1, y1, x2, y2):
        return self.s[x2][y2] - self.s[x1][y2] - s[x2][y1] + s[x1][y1]

counts = TwoDimSum()
for _ in range(m):
    l, r = map(int, input().split())
    counts.add_count(l-1, r-1)
counts.build()

for i in range(q):
    x, y = map(int, input().split())
    ans.append(str(counts.solve(x, x, y, y)))
print("\n".join(ans))

Fixed code:
import sys
input = sys.stdin.buffer.readline

n, m, q = map(int, input().split())

class TwoDimSum():
    def __init__(self, h, w):
        self.h = h
        self.w = w
        self.counts = [[0 for _ in range(w+1)] for _ in range(h+1)]
        self.s = [[0 for _ in range(w+1)] for _ in range(h+1)]

    def add_count(self, x, y):
        # 1-indexed
        self.counts[y][x] += 1

    def build(self):
        for i in range(self.h):
            for j in range(self.w):
                self.s[i+1][j+1] = self.s[i][j+1] + self.s[i+1][j] - self.s[i][j] + self.counts[i+1][j+1]

    def solve(self, x1, y1, x2, y2):
        # 1-indexed
        # (x1, y1): left up
        # (x2, y2): right down
        return self.s[x2][y2] - self.s[x1-1][y2] - self.s[x2][y1-1] + self.s[x1-1][y1-1]

counts = TwoDimSum(n, n)
for _ in range(m):
    l, r = map(int, input().split())
    counts.add_count(l, r)
counts.build()

ans = []
for i in range(q):
    x, y = map(int, input().split())
    ans.append(str(counts.solve(x, x, y, y)))
print("\n".join(ans))
Buggy code:
N, M, Q = map(int,input().split())
Mlist = []
for i in range(M):
    array = list(map(int, input().strip().split()))
    Mlist.append(array)
Qlist = []
for i in range(Q):
    array = list(map(int, input().strip().split()))
    Qlist.append(array)
p = [[0 for i in range(N)] for j in range(N)]
q = 0
r = [[0 for i in range(N)] for j in range(N)]
def count(k,l):
    s = k
    j = l
    p[s-1][j-1] = p[s-1][j-1] + 1
for i in range(len(Mlist)):
    count(Mlist[i][0],Mlist[i][1])
for i in range(N):
    for j in range(N):
        if j > 0:
            r[i][j] = r[i][j-1] + p[i][j]
        else:
            r[i][j] = p[i][j]
for i in range(len(Qlist)):
    q = 0
    print(q)

Fixed code:
N, M, Q = map(int,input().split())
Mlist = []
for i in range(M):
    array = list(map(int, input().strip().split()))
    Mlist.append(array)
Qlist = []
for i in range(Q):
    array = list(map(int, input().strip().split()))
    Qlist.append(array)
p = [[0 for i in range(N)] for j in range(N)]
q = 0
r = [[0 for i in range(N)] for j in range(N)]
def count(k,l):
    s = k
    j = l
    p[s-1][j-1] = p[s-1][j-1] + 1
for i in range(len(Mlist)):
    count(Mlist[i][0],Mlist[i][1])
for i in range(N):
    for j in range(N):
        if i == 0:
            r[i][j] = p[i][j] + r[i][j-1]      
        elif j == 0:
            r[i][j] = p[i][j] +r[i-1][j]
        else:
            r[i][j] = r[i-1][j] + r[i][j-1] - r[i-1][j-1] + p[i][j]
for i in range(len(Qlist)):
    q = 0
    if Qlist[i][0] == 1:
        b = r[Qlist[i][1]-1][Qlist[i][1]-1]
    else:
        b = r[Qlist[i][1]-1][Qlist[i][1]-1] - r[Qlist[i][0]-2][Qlist[i][1]-1]
    print(b)
Buggy code:
n,m,Q=map(int,input().split())
M=[[0]*n for _ in range(n)]
for i in range(m):
    l,r=map(int,input().split())
    M[r-1][l-1]=1

for q in range(n):
    for p in reversed(range(1,n)):
        M[q][p-1]+=M[q][p]
for p in range(n):
    for q in range(n-1):
        M[q+1][p]+=M[q][p]        

for i in range(Q):
    p,q=map(int,input().split())
    print(M[q-1][p-1])

Fixed code:
n,m,Q=map(int,input().split())
M=[[0]*n for _ in range(n)]
for i in range(m):
    l,r=map(int,input().split())
    M[r-1][l-1]+=1

for q in range(n):
    for p in reversed(range(1,n)):
        M[q][p-1]+=M[q][p]
for p in range(n):
    for q in range(n-1):
        M[q+1][p]+=M[q][p]        

for i in range(Q):
    p,q=map(int,input().split())
    print(M[q-1][p-1])
Buggy code:

def f(h,w,a):
    da = [[0]*w for _ in range(h)]
    da[0][0] = a[0][0]
    for i in range(1, w):
        da[0][i] = da[0][i-1] + a[0][i]
    for i in range(1, h):
        cnt_w = 0
        for j in range(w):
            cnt_w += a[i][j]
            da[i][j] = da[i-1][j] + cnt_w
    return da

def Calc(p,q,x,y, da):
    if p>x  or q>y:
        return 0
    if p==0 or q==0:
        return da[x][y]
    if p==0:
        return da[x][y] - da[x][q-1]
    if q==0:
        return da[x][y] - da[p-1][y]
    return da[x][y] - da[x][q-1] - da[p-1][y] + da[p-1][q-1]

N,M,Q = map(int,input().split())
t = [[0]*(N+1) for _ in range(N+1)]
for _ in range(M):
    l,r = map(int,input().split())
    t[l][r] += 1

d = f(N,N,t)
query = []
for _ in range(Q):
    p,q = map(int,input().split())
    p -= 1
    q -= 1
    print(Calc(p,p,q,q,d))

Fixed code:
def f(h,w,a):
    da = [[0]*(w+1)for _ in range(h+1)]
    da[0][0] = a[0][0]
    for i in range(1, w+1):
        da[0][i] = da[0][i-1] + a[0][i]
    for i in range(1, h+1):
        cnt_w = 0
        for j in range(w+1):
            cnt_w += a[i][j]
            da[i][j] = da[i-1][j] + cnt_w
    return da

def Calc(p,q,x,y, da):
    if p>x  or q>y:
        return 0
    if p==0 or q==0:
        return da[x][y]
    if p==0:
        return da[x][y] - da[x][q-1]
    if q==0:
        return da[x][y] - da[p-1][y]
    return da[x][y] - da[x][q-1] - da[p-1][y] + da[p-1][q-1]

N,M,Q = map(int,input().split())
t = [[0]*(N+1) for _ in range(N+1)]
for _ in range(M):
    l,r = map(int,input().split())
    t[l][r] += 1

d = f(N,N,t)
for _ in range(Q):
    p,q = map(int,input().split())
    print(Calc(p,p,q,q,d))
Buggy code:
N,M,Q=map(int,input().split())
L,R=[],[]
for i in range(M):
  l,r=map(int,input().split())
  L.append(l)
  R.append(r)
Pl,Ql=[],[]
for i in range(Q):
  pq=list(map(int,input().split()))
  Pl.append(pq[0])
  Ql.append(pq[1])
c=[[0 for i in range(N+1)] for i in range(N+1)]
for i in range(M):
  c[L[i]][R[i]]+=1
for i in range(1,N+1):
  for j in range(1,N+1):
    c[i][j]+=c[i][j-1]
for i in range(1,N+1):
  for j in range(1,N+1):
    c[i][j]+=c[i-1][j]
for i in range(Q):
  ans=c[R[i]][R[i]]-c[L[i]-1][R[i]]-c[R[i]][L[i]-1]+c[L[i]-1][L[i]-1]
  print(ans)

Fixed code:
N,M,Q=map(int,input().split())
L,R=[],[]
for i in range(M):
  l,r=map(int,input().split())
  L.append(l)
  R.append(r)
Pl,Ql=[],[]
for i in range(Q):
  pq=list(map(int,input().split()))
  Pl.append(pq[0])
  Ql.append(pq[1])
c=[[0 for i in range(N+1)] for i in range(N+1)]
for i in range(M):
  c[L[i]][R[i]]+=1
for i in range(1,N+1):
  for j in range(1,N+1):
    c[i][j]+=c[i][j-1]
for i in range(1,N+1):
  for j in range(1,N+1):
    c[i][j]+=c[i-1][j]
for i in range(Q):
  ans=c[Ql[i]][Ql[i]]-c[Pl[i]-1][Ql[i]]-c[Ql[i]][Pl[i]-1]+c[Pl[i]-1][Pl[i]-1]
  print(ans)
Buggy code:
N,M,Q=map(int,input().split())
dp=[[0]*-~N for _ in[0]*-~N]
for _ in[0]*M:
    L,R=map(int,input().split())
    for i in range(1,L+1):
        for j in range(R,N+1):
            dp[i][j] += 1
            print(i,j)
for _ in[0]*Q:
    p,q=map(int,input().split())
    print(dp[p][q])

Fixed code:
N, M, Q = map(int, input().split())
dp = [[0] * (N + 1) for _ in range(N + 1)]
for _ in range(M):
    L, R = map(int, input().split())
    dp[L][R] += 1

for i in range(N + 1):
    for j in range(N):
        dp[i][j + 1] += dp[i][j]
for j in range(N + 1):
    for i in range(N):
        dp[i + 1][j] += dp[i][j]
for k in range(Q):
    p, q = map(int, input().split())
    print(dp[q][q] - dp[p - 1][q])
Buggy code:

def resolve():
    N,M,Q=map(int,input().split())
    mp=[[0 for i in range(N+2)] for i in range(N+1)]
    for _ in range(M):
        L,R=map(int,input().split())

        mp[L][R]+=1
    for i in range(1,N+1):
        for j in range(1,N+1):
            mp[i][j]+=mp[i][j-1]
        print(i,mp[i])
    for _ in range(Q):
        p,q=map(int,input().split())
        sm=0
        for i in range(p,q+1):
            sm+=mp[i][q]
        print(sm)



if __name__ == "__main__":
    resolve()
    #unittest.main()

Fixed code:
def resolve():
    N,M,Q=map(int,input().split())
    mp=[[0 for i in range(N+2)] for i in range(N+1)]
    for _ in range(M):
        L,R=map(int,input().split())

        mp[L][R]+=1
    for i in range(1,N+1):
        for j in range(1,N+1):
            mp[i][j]+=mp[i][j-1]
        #print(i,mp[i])
    for _ in range(Q):
        p,q=map(int,input().split())
        sm=0
        for i in range(p,q+1):
            sm+=mp[i][q]
        print(sm)



if __name__ == "__main__":
    resolve()
    #unittest.main()
Buggy code:

import numpy as np
import sys
sys.setrecursionlimit(100000)



def acinput():
    return list(map(int, input().split(" ")))



directions=np.array([[1,0],[0,1],[-1,0],[0,-1]])
directions = list(map(np.array, directions))

mod = 10**9+7


def factorial(n):
    fact = 1
    for integer in range(1, n + 1):
        fact *= integer
    return fact



def serch(x, count):
    #print("top", x, count)
            

    for d in directions:
        nx = d+x
        #print(nx)
        if np.all(0 <= nx) and np.all(nx < (H, W)):
            if field[nx[0]][nx[1]] == "E":
                count += 1 
                field[nx[0]][nx[1]] = "V"
                count = serch(nx, count)  
                continue
            if field[nx[0]][nx[1]] == "#":
                field[nx[0]][nx[1]] = "V"
                count = serch(nx, count)    
                 
    return count

N,M,Q=acinput()

A=np.zeros([N+1,N+1])

for i in range(M):
    tmp=acinput()
    A[tmp[0],tmp[1]]+=1
Acs=np.cumsum(A,axis=1 )
Acs=np.cumsum(Acs,axis=0)

for i in range(Q):
    tmp=acinput()
    print(Acs[tmp[1], tmp[1]]-Acs[tmp[1],tmp[0]-1]-Acs[tmp[0]-1,tmp[1]]+Acs[tmp[0]-1, tmp[0]-1])



Fixed code:

import numpy as np
import sys
sys.setrecursionlimit(100000)



def acinput():
    return list(map(int, input().split(" ")))



directions=np.array([[1,0],[0,1],[-1,0],[0,-1]])
directions = list(map(np.array, directions))

mod = 10**9+7


def factorial(n):
    fact = 1
    for integer in range(1, n + 1):
        fact *= integer
    return fact



def serch(x, count):
    #print("top", x, count)
            

    for d in directions:
        nx = d+x
        #print(nx)
        if np.all(0 <= nx) and np.all(nx < (H, W)):
            if field[nx[0]][nx[1]] == "E":
                count += 1 
                field[nx[0]][nx[1]] = "V"
                count = serch(nx, count)  
                continue
            if field[nx[0]][nx[1]] == "#":
                field[nx[0]][nx[1]] = "V"
                count = serch(nx, count)    
                 
    return count

N,M,Q=acinput()

A=np.zeros([N+1,N+1])

for i in range(M):
    tmp=acinput()
    A[tmp[0],tmp[1]]+=1
Acs=np.cumsum(A,axis=1 )
Acs=np.cumsum(Acs,axis=0)

for i in range(Q):
    tmp=acinput()
    print(int(Acs[tmp[1], tmp[1]]-Acs[tmp[1],tmp[0]-1]-Acs[tmp[0]-1,tmp[1]]+Acs[tmp[0]-1, tmp[0]-1]))