Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import collections
H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

q = collections.deque()

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = 0
for i in range(H):
    for j in range(W):
        M = max(C[i][j], M)

dp = [[set() for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j].add(C[i][j])
            else:
                for x in dp[i][j-1]:
                    dp[i][j].add(abs(x-C[i][j]))
                    dp[i][j].add(x+C[i][j])

        else:
            if j != 0:
                for x in dp[i][j-1]:
                    dp[i][j].add(abs(x-C[i][j]))
                    dp[i][j].add(x+C[i][j])

            for x in dp[i-1][j]:
                dp[i][j].add(abs(x-C[i][j]))
                dp[i][j].add(x+C[i][j])

print(min(dp[H-1][W-1]))


Fixed submission:

H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = (H+W)*80

dp = [[0 for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j] = (1 << M) << C[i][j]
            else:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

        else:
            if j != 0:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

            dp[i][j] |= dp[i-1][j] >> C[i][j]
            dp[i][j] |= dp[i-1][j] << C[i][j]

dp = bin(dp[i][j])[2:]
dp = dp[::-1]
ans = M
for i, x in enumerate(dp):
    if x == "1":
        ans = min(ans, abs(i - M))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import collections
H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

q = collections.deque()

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = 0
for i in range(H):
    for j in range(W):
        M = max(C[i][j], M)

dp = [[set() for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j].add(C[i][j])
            else:
                for x in dp[i][j-1]:
                    dp[i][j].add(abs(x-C[i][j]))
                    dp[i][j].add(x+C[i][j])

        else:
            if j != 0:
                for x in dp[i][j-1]:
                    dp[i][j].add(abs(x-C[i][j]))
                    dp[i][j].add(x+C[i][j])

            for x in dp[i-1][j]:
                dp[i][j].add(abs(x-C[i][j]))
                dp[i][j].add(x+C[i][j])

print(min(dp[H-1][W-1]))


Fixed submission:

H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = (H+W)*80

dp = [[0 for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j] = (1 << M) << C[i][j]
            else:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

        else:
            if j != 0:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

            dp[i][j] |= dp[i-1][j] >> C[i][j]
            dp[i][j] |= dp[i-1][j] << C[i][j]

dp = bin(dp[i][j])[2:]
dp = dp[::-1]
ans = M
for i, x in enumerate(dp):
    if x == "1":
        ans = min(ans, abs(i - M))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import collections
H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

q = collections.deque()

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = 0
for i in range(H):
    for j in range(W):
        M = max(C[i][j], M)

dp = [[[False]*((M*(H+W)) + 1) for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j][C[i][j]] = True
            else:
                for m in range((H+W)*M+1):
                    if dp[i][j-1][m]:
                        dp[i][j][abs(m - C[i][j])] = True
                        dp[i][j][m+C[i][j]] = True

        else:
            if j != 0:
                for m in range((H+W)*M+1):
                    if dp[i][j-1][m]:
                        dp[i][j][abs(m - C[i][j])] = True
                        dp[i][j][m+C[i][j]] = True

            for m in range((H+W)*M+1):
                if dp[i-1][j][m]:
                    dp[i][j][abs(m - C[i][j])] = True
                    dp[i][j][m+C[i][j]] = True
for i in range((M*(H+W))+1):
    if dp[H-1][W-1][i]:
        print(i)
        break


Fixed submission:

H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = (H+W)*80

dp = [[0 for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j] = (1 << M) << C[i][j]
            else:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

        else:
            if j != 0:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

            dp[i][j] |= dp[i-1][j] >> C[i][j]
            dp[i][j] |= dp[i-1][j] << C[i][j]

dp = bin(dp[i][j])[2:]
dp = dp[::-1]
ans = M
for i, x in enumerate(dp):
    if x == "1":
        ans = min(ans, abs(i - M))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import collections
H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

q = collections.deque()

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = 0
for i in range(H):
    for j in range(W):
        M = max(C[i][j], M)

dp = [[[False]*((M*(H+W)) + 1) for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j][C[i][j]] = True
            else:
                for m in range((H+W)*M+1):
                    if dp[i][j-1][m]:
                        dp[i][j][abs(m - C[i][j])] = True
                        dp[i][j][m+C[i][j]] = True

        else:
            if j != 0:
                for m in range((H+W)*M+1):
                    if dp[i][j-1][m]:
                        dp[i][j][abs(m - C[i][j])] = True
                        dp[i][j][m+C[i][j]] = True

            for m in range((H+W)*M+1):
                if dp[i-1][j][m]:
                    dp[i][j][abs(m - C[i][j])] = True
                    dp[i][j][m+C[i][j]] = True
for i in range((M*(H+W))+1):
    if dp[H-1][W-1][i]:
        print(i)
        break


Fixed submission:

H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = (H+W)*80

dp = [[0 for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j] = (1 << M) << C[i][j]
            else:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

        else:
            if j != 0:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

            dp[i][j] |= dp[i-1][j] >> C[i][j]
            dp[i][j] |= dp[i-1][j] << C[i][j]

dp = bin(dp[i][j])[2:]
dp = dp[::-1]
ans = M
for i, x in enumerate(dp):
    if x == "1":
        ans = min(ans, abs(i - M))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import collections
H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

q = collections.deque()

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = 0
for i in range(H):
    for j in range(W):
        M = max(C[i][j], M)

dp = [[[False]*((M*H*W) + 1) for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j][C[i][j]] = True
            else:
                for m in range(M+1):
                    if dp[i][j-1][m]:
                        dp[i][j][abs(m - C[i][j])] = True
                        dp[i][j][m+C[i][j]] = True

        else:
            if j != 0:
                for m in range(M+1):
                    if dp[i][j-1][m]:
                        dp[i][j][abs(m - C[i][j])] = True
                        dp[i][j][m+C[i][j]] = True

            for m in range(M+1):
                if dp[i-1][j][m]:
                    dp[i][j][abs(m - C[i][j])] = True
                    dp[i][j][m+C[i][j]] = True
for i in range((M*H*W)+1):
    if dp[H-1][W-1][i]:
        print(i)
        break


Fixed submission:

H, W = map(int, input().split())
A = [list(map(int, input().split())) for i in range(H)]
B = [list(map(int, input().split())) for i in range(H)]

C = [[abs(A[i][j] - B[i][j]) for j in range(W)] for i in range(H)]
M = (H+W)*80

dp = [[0 for j in range(W)] for i in range(H)]

for i in range(H):
    for j in range(W):
        if i == 0:
            if j == 0:
                dp[i][j] = (1 << M) << C[i][j]
            else:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

        else:
            if j != 0:
                dp[i][j] |= dp[i][j-1] >> C[i][j]
                dp[i][j] |= dp[i][j-1] << C[i][j]

            dp[i][j] |= dp[i-1][j] >> C[i][j]
            dp[i][j] |= dp[i-1][j] << C[i][j]

dp = bin(dp[i][j])[2:]
dp = dp[::-1]
ans = M
for i, x in enumerate(dp):
    if x == "1":
        ans = min(ans, abs(i - M))

print(ans)