Lucky prefixes

line = input().split()

n = int(line[0])
q = int(line[1])

line = input().split()
numbers = []
for i in range(n):
    numbers.append(int(line[i]))

is_no = list(list([0 for i in range(0,n)] for j in range(0,n)))

for i in range(q):
    checker = True
    line = input().split()
    t = int(line[0])
    a = int(line[1])
    b = int(line[2])
    if t == 1:
        numbers[a-1] = b
    else:
        for k in range(a,b):
            if is_no[a][k] == 1:
                print("NO")
                checker = False
        temp = 0
        for r in range(a-1,b):
            temp += numbers[r]
            if temp < 0:
                print("NO")
                checker = False
                is_no[a][b-1] = 1
                break
        if checker:
            print("YES")

Test 1

Verdict: ACCEPTED

Test 2

Verdict: RUNTIME ERROR

Test 3

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 32, in <module>
    is_no[a][b-1] = 1
IndexError: list index out of range

Test 4

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 32, in <module>
    is_no[a][b-1] = 1
IndexError: list index out of range

Test 5

Verdict: RUNTIME ERROR

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: RUNTIME ERROR

Test 8

Verdict: RUNTIME ERROR

Test 9

Verdict: RUNTIME ERROR

Test 10

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 32, in <module>
    is_no[a][b-1] = 1
IndexError: list index out of range

Test 11

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 32, in <module>
    is_no[a][b-1] = 1
IndexError: list index out of range

Test 12

Verdict: RUNTIME ERROR

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: RUNTIME ERROR

Test 15

Verdict: RUNTIME ERROR

Test 16

Verdict: RUNTIME ERROR