Buggy python submission (verdict: Time Limit Exceeded):
##解答を見た
import sys
def input(): return sys.stdin.readline().strip()

H,W,D = map(int,input().split())
A = []
for i in range(H):
    tmp = list(map(int,input().split()))
    A.append(tmp)

pos = []
for k in range(1,H*W+1):
    for i in range(H):
        for j in range(W):
            if A[i][j] == k:
                pos.append([i+1,j+1])
                break
dist = []
for i in range(1,H*W+1):##O(HW)
    if i<=D:
        dist.append(0)
    else:
        dist.append(dist[i-D-1]+abs(pos[i-1][0]-pos[i-D-1][0])+abs(pos[i-1][1]-pos[i-D-1][1]))

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):##O(Q)
    print(dist[LR[i][1]-1]-dist[LR[i][0]-1])

Fixed submission:
##解答を見た 手前でO(H^2W^2) ~O(10^9)くらいのことをしていた
H,W,D = map(int,input().split())
A = []
for i in range(H):
    A.append(list(map(int,input().split())))

pos = [[0 for i in range(2)] for j in range(H*W+1)]

for i in range(H):
    for j in range(W):
        pos[A[i][j]][0] = i+1
        pos[A[i][j]][1] = j+1

dist = []
for i in range(1,H*W+1):##O(HW)
    if i<=D:
        dist.append(0)
    else:
        dist.append(dist[i-D-1]+abs(pos[i][0]-pos[i-D][0])+abs(pos[i][1]-pos[i-D][1]))

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):
    print(dist[LR[i][1]-1]-dist[LR[i][0]-1])

Buggy python submission (verdict: Time Limit Exceeded):
##解答を見た O(HW)+O(HW)+O(Q) ~ O(Q)

H,W,D = map(int,input().split())
A = []
for i in range(H):
    tmp = list(map(int,input().split()))
    A.append(tmp)

pos = []
for k in range(1,H*W+1):##O(HW)
    for i in range(H):
        for j in range(W):
            if A[i][j] == k:
                pos.append([i+1,j+1])
                break
dist = []
for i in range(1,H*W+1):##O(HW)
    if i<=D:
        dist.append(0)
    else:
        dist.append(dist[i-D-1]+abs(pos[i-1][0]-pos[i-D-1][0])+abs(pos[i-1][1]-pos[i-D-1][1]))
def exam(L,R):##O(1)
    """
    ans = 0
    while R != L:
        ##print("L",L,"R",R)
        ans += abs(dist[L+D-1][0]-dist[L-1][0])+abs(dist[L+D-1][1]-dist[L-1][1])
        L += D
    """
    return dist[R-1] - dist[L-1]  

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):##O(Q)
    print(exam(LR[i][0],LR[i][1]))

Fixed submission:
##解答を見た 手前でO(H^2W^2) ~O(10^9)くらいのことをしていた
H,W,D = map(int,input().split())
A = []
for i in range(H):
    A.append(list(map(int,input().split())))

pos = [[0 for i in range(2)] for j in range(H*W+1)]

for i in range(H):
    for j in range(W):
        pos[A[i][j]][0] = i+1
        pos[A[i][j]][1] = j+1

dist = []
for i in range(1,H*W+1):##O(HW)
    if i<=D:
        dist.append(0)
    else:
        dist.append(dist[i-D-1]+abs(pos[i][0]-pos[i-D][0])+abs(pos[i][1]-pos[i-D][1]))

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):
    print(dist[LR[i][1]-1]-dist[LR[i][0]-1])

Buggy python submission (verdict: Time Limit Exceeded):
H,W,D = map(int,input().split())
A = []
for i in range(H):
    tmp = list(map(int,input().split()))
    A.append(tmp)
dist = []
for k in range(1,H*W+1):
    for i in range(H):
        for j in range(W):
            if A[i][j] == k:
                dist.append([i+1,j+1])
                break
def exam(L,R,D):
    ans = 0
    while R != L:
        ##print("L",L,"R",R)
        ans += abs(dist[L+D-1][0]-dist[L-1][0])+abs(dist[L+D-1][1]-dist[L-1][1])
        L += D
    return ans    

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):
    print(exam(LR[i][0],LR[i][1],D))

Fixed submission:
##解答を見た 手前でO(H^2W^2) ~O(10^9)くらいのことをしていた
H,W,D = map(int,input().split())
A = []
for i in range(H):
    A.append(list(map(int,input().split())))

pos = [[0 for i in range(2)] for j in range(H*W+1)]

for i in range(H):
    for j in range(W):
        pos[A[i][j]][0] = i+1
        pos[A[i][j]][1] = j+1

dist = []
for i in range(1,H*W+1):##O(HW)
    if i<=D:
        dist.append(0)
    else:
        dist.append(dist[i-D-1]+abs(pos[i][0]-pos[i-D][0])+abs(pos[i][1]-pos[i-D][1]))

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):
    print(dist[LR[i][1]-1]-dist[LR[i][0]-1])

Buggy python submission (verdict: Runtime Error):
def dist(A,a,b):
    ans = [0]*4
    for i in range(W):
        for j in range(H):
            if A[i][j] == a:
                ans[0] = i
                ans[1] = j
            if A[i][j] == b:
                ans[2] = i
                ans[3] = j
    return abs(ans[0]-ans[2])+abs(ans[1]-ans[3])

def exam(L,R,D,A):
    ans = 0
    if L == R:
        return ans
    else:
        while R != L:
            ##print("L",L,"R",R)
            ans += dist(A,L,L+D)
            L += D
        return ans    

H,W,D = map(int,input().split())
A = []
for i in range(H):
    tmp = list(map(int,input().split()))
    A.append(tmp)

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):
    print(exam(LR[i][0],LR[i][1],D,A))

Fixed submission:
##解答を見た 手前でO(H^2W^2) ~O(10^9)くらいのことをしていた
H,W,D = map(int,input().split())
A = []
for i in range(H):
    A.append(list(map(int,input().split())))

pos = [[0 for i in range(2)] for j in range(H*W+1)]

for i in range(H):
    for j in range(W):
        pos[A[i][j]][0] = i+1
        pos[A[i][j]][1] = j+1

dist = []
for i in range(1,H*W+1):##O(HW)
    if i<=D:
        dist.append(0)
    else:
        dist.append(dist[i-D-1]+abs(pos[i][0]-pos[i-D][0])+abs(pos[i][1]-pos[i-D][1]))

LR = []
Q = int(input())
for i in range(Q):
    L,R = map(int,input().split())
    LR.append([L,R])

for i in range(Q):
    print(dist[LR[i][1]-1]-dist[LR[i][0]-1])