Submission #2744103


Source Code Expand

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

S = [[0] * (W+1) for i in range(H+1)]
for i in range(H):
    for j in range(W):
        if (i+j) % 2 == 0:
            S[i+1][j+1] = C[i][j]
        else:
            S[i+1][j+1] = -C[i][j]

# 2次元累積和
for i in range(2, H+1):
    S[i][1] += S[i-1][1]
for i in range(2, W+1):
    S[1][i] += S[1][i-1]

for i in range(2, H+1):
    for j in range(2, W+1):
        S[i][j] = S[i][j] + S[i-1][j] + S[i][j-1] - S[i-1][j-1]

# 答えを計算
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 S[k][l] - S[k][j-1] - S[i-1][l] + S[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 826 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 18 ms 3064 KB
subtask1_03.txt AC 18 ms 3064 KB
subtask1_04.txt AC 19 ms 3064 KB
subtask1_05.txt AC 31 ms 3064 KB
subtask1_06.txt AC 70 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 1766 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 3188 KB
subtask1_15.txt TLE 2104 ms 3188 KB
subtask1_16.txt TLE 2104 ms 3436 KB
subtask1_17.txt TLE 2104 ms 3188 KB
subtask1_18.txt AC 18 ms 3064 KB
subtask1_19.txt AC 28 ms 3064 KB
subtask1_20.txt TLE 2104 ms 3316 KB