Buggy python submission (verdict: Time Limit Exceeded):
import itertools as itr
n, w = list(map(int, input().split()))
warr = [0]*(n+1)
varr = [0]*(n+1)
for i in range(n):
    wi, vi = list(map(int, input().split()))
    warr[i+1] = wi
    varr[i+1] = vi
    
dp = [[0]*(w+1) for _ in range(n+1)]

for i, j in itr.product(range(1,n+1), range(1,w+1)):
        jw = j-warr[i]
        if jw <0:
            dp[i][j] = dp[i-1][j]
            continue
        dp[i][j] = max(dp[i-1][jw] + varr[i], dp[i-1][j])
        
print(dp[n][w])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Buggy python submission (verdict: Runtime Error):
import itertools as itr
n, w = list(map(int, input().split()))
warr = [0]*(n+1)
varr = [0]*(n+1)
for i in range(n):
    wi, vi = list(map(int, input().split()))
    warr[i+1] = wi
    varr[i+1] = vi
    
dp = [[0]*(w+1) for _ in range(n+1)]

for i, j in itr.products(range(1,n+1), range(1,w+1)):
        jw = j-warr[i]
        if jw <0:
            dp[i][j] = dp[i-1][j]
            continue
        dp[i][j] = max(dp[i-1][jw] + varr[i], dp[i-1][j])
        
print(dp[n][w])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-
"""
Created on Sat Feb 16 19:31:10 2019
Knapsack1
@author: maezawa
"""

n, w = list(map(int, input().split()))
warr = [0]*(n+1)
varr = [0]*(n+1)
for i in range(n):
    wi, vi = list(map(int, input().split()))
    warr[i+1] = wi
    varr[i+1] = vi
    
dp = [[0]*(w+1) for _ in range(n+1)]

for i in range(1,n+1):
    for j in range(1,w+1):
        jw = j-warr[i]
        if jw <0:
            continue
        dp[i][j] = max([dp[k][jw] + varr[i] for k in range(i)])
        dp[i][j] = max(dp[i][j], dp[i-1][j])
        
print(dp[n][w])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-
"""
Created on Sat Feb 16 19:31:10 2019
Knapsack1
@author: maezawa
"""

n, w = list(map(int, input().split()))
warr = [0]*(n+1)
varr = [0]*(n+1)
for i in range(n):
    wi, vi = list(map(int, input().split()))
    warr[i+1] = wi
    varr[i+1] = vi
    
dp = [[0]*(w+1) for _ in range(n+1)]

for i in range(1,n+1):
    for j in range(1,w+1):
        jw = j-warr[i]
        if jw <0:
            continue
        dp[i][j] = max([dp[k][jw] + varr[i] for k in range(i)])
        dp[i][j] = max(dp[i][j], dp[i-1][j])
        
print(dp[n][w])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Buggy python submission (verdict: Time Limit Exceeded):
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Buggy python submission (verdict: Time Limit Exceeded):
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Buggy python submission (verdict: Time Limit Exceeded):
n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i in range(1, n+1):
    for wi in range(1, wmax+1):
        if wi-w[i] >= 0:
            dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
        else:
            dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])

Fixed submission:
import itertools as itr

n, wmax = list(map(int, input().split()))
w = [0]*(n+1)
v = [0]*(n+1)
for i in range(1, n+1):
    wi, vi = list(map(int, input().split()))
    w[i] = wi
    v[i] = vi
    
dp = [[0]*(wmax+1) for _ in range(n+1)]

for i, wi in itr.product(range(1, n+1), range(1, wmax+1)):
    if wi-w[i] >= 0:
        dp[i][wi] = max(dp[i-1][wi], dp[i-1][wi-w[i]]+v[i])
    else:
        dp[i][wi] = dp[i-1][wi]
            
print(dp[n][wmax])