Buggy python submission (verdict: Time Limit Exceeded):
def main():
    import sys
    input = sys.stdin.readline
    N = int(input())
    a = list(map(int, input().split()))
    inf = 10 ** 13
    dp = [[0]*N for i in range(N)]
    s = [0] * (N+1)
    for i, x in enumerate(a):
        s[i+1] = s[i] + x
        dp[i][i] = 0
    for i in range(N-2, -1, -1):
        DP = dp[i]
        si = s[i]
        for j in range(i+1, N):
            tmp = s[j+1] - si
            D = inf
            for k in range(i, j):
                if D > DP[k]+dp[k+1][j]:
                    D = DP[k]+dp[k+1][j]
            DP[j] = D + tmp
    print(dp[0][N-1])


main()


Fixed submission:
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    N = int(input())
    a = list(map(int, input().split()))
    inf = 10 ** 13
    dp = [[0]*N for i in range(N)]
    s = [0] * (N+1)
    for i, x in enumerate(a):
        s[i+1] = s[i] + x
        dp[i][i] = 0
    for i in range(N-2, -1, -1):
        DP = dp[i]
        si = s[i]
        for j in range(i+1, N):
            tmp = s[j+1] - si
            D = inf
            for k in range(i, j):
                if D > DP[k]+dp[k+1][j]:
                    D = DP[k]+dp[k+1][j]
            DP[j] = D + tmp
    print(dp[0][N-1])
main()


Fixed submission:
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    N = int(input())
    a = list(map(int, input().split()))
    inf = 10 ** 13
    dp = [[0]*N for i in range(N)]
    s = [0] * (N+1)
    for i, x in enumerate(a):
        s[i+1] = s[i] + x
        dp[i][i] = 0
    for i in range(N-2, -1, -1):
        DP = dp[i]
        si = s[i]
        for j in range(i+1, N):
            tmp = s[j+1] - si
            D = inf
            for k in range(i, j):
                if D > DP[k]+dp[k+1][j]:
                    D = DP[k]+dp[k+1][j]
            DP[j] = D + tmp
    print(dp[0][N-1])
main()


Fixed submission:
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    N = int(input())
    a = list(map(int, input().split()))
    inf = 10 ** 13
    dp = [[0]*N for i in range(N)]
    s = [0] * (N+1)
    for i, x in enumerate(a):
        s[i+1] = s[i] + x
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        DP = dp[i]
        si = s[i]
        for j in range(i+1, N):
            tmp = s[j+1] - si
            D = inf
            for k in range(i, j):
                if D > DP[k]+dp[k+1][j] + tmp:
                    D = DP[k]+dp[k+1][j] + tmp
            DP[j] = D
    print(dp[0][N-1])
main()


Fixed submission:
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i, x in enumerate(a):
        s[i+1] = s[i] + x
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            D = dp[i]
            for k in range(i, j):
                if D[j] > D[k]+dp[k+1][j] + tmp:
                    D[j] = D[k]+dp[k+1][j] + tmp

    print(dp[0][N-1])
main()


Fixed submission:
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()


Fixed submission:
def main():
    N = int(input())
    a = list(map(int, input().split()))

    dp = [[10**13]*N for i in range(N)]
    s = [0] * (N+1)
    for i in range(N):
        s[i+1] = s[i] + a[i]
        dp[i][i] = 0
    for i in range(N-1, -1, -1):
        for j in range(i+1, N):
            tmp = s[j+1] - s[i]
            for k in range(i, j):
                dp[i][j] = min(dp[i][j], dp[i][k]+dp[k+1][j] + tmp)

    print(dp[0][N-1])


main()