Submission #2821479


Source Code Expand

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

R = [[0] * W for i in range(H)]
for i in range(H):
    for j in range(W):
        if (i+j) % 2 == 0:
            R[i][j] = C[i][j]
        else:
            R[i][j] = -C[i][j]

for i in range(1, H):
    R[i][0] += R[i-1][0]
for j in range(1, W):
    R[0][j] += R[0][j-1]
for i in range(1, H):
    for j in range(1, W):
        R[i][j] += R[i-1][j] + R[i][j-1] - R[i-1][j-1]

for i in range(H):
    R[i].insert(0, 0)
R.insert(0, [0] * (W+1))

ans = 0
for i in range(1, H+1):
    for j in range(1, W+1):
        for k in range(i, H+1):
            for l in range(j, W+1):
                if R[k][l] - R[k][j-1] - R[i-1][l] + R[i-1][j-1] == 0:
                    ans = max(ans, (k-i+1)*(l-j+1))

print(ans)

Submission Info

Submission Time
Task B - チョコレート
User AT274
Language Python (3.4.3)
Score 0
Code Size 827 Byte
Status TLE
Exec Time 2104 ms
Memory 3440 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 100
Status
AC × 5
AC × 16
TLE × 9
Set Name Test Cases
Sample subtask0_sample-01.txt, subtask0_sample-02.txt, subtask0_sample-03.txt, subtask0_sample-04.txt, subtask0_sample-05.txt
All subtask0_sample-01.txt, subtask0_sample-02.txt, subtask0_sample-03.txt, subtask0_sample-04.txt, subtask0_sample-05.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt
Case Name Status Exec Time Memory
subtask0_sample-01.txt AC 17 ms 3064 KB
subtask0_sample-02.txt AC 17 ms 3064 KB
subtask0_sample-03.txt AC 17 ms 3064 KB
subtask0_sample-04.txt AC 17 ms 3064 KB
subtask0_sample-05.txt AC 17 ms 3064 KB
subtask1_01.txt AC 17 ms 3064 KB
subtask1_02.txt AC 17 ms 3064 KB
subtask1_03.txt AC 18 ms 3064 KB
subtask1_04.txt AC 18 ms 3064 KB
subtask1_05.txt AC 30 ms 3064 KB
subtask1_06.txt AC 72 ms 3064 KB
subtask1_07.txt AC 18 ms 3064 KB
subtask1_08.txt AC 25 ms 3064 KB
subtask1_09.txt TLE 2104 ms 3440 KB
subtask1_10.txt AC 1776 ms 3188 KB
subtask1_11.txt TLE 2104 ms 3436 KB
subtask1_12.txt TLE 2104 ms 3436 KB
subtask1_13.txt TLE 2104 ms 3436 KB
subtask1_14.txt TLE 2104 ms 3316 KB
subtask1_15.txt TLE 2104 ms 3316 KB
subtask1_16.txt TLE 2104 ms 3436 KB
subtask1_17.txt TLE 2104 ms 3188 KB
subtask1_18.txt AC 17 ms 3064 KB
subtask1_19.txt AC 28 ms 3064 KB
subtask1_20.txt TLE 2104 ms 3316 KB