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  1. Prepare
  2. Data Structures
  3. Arrays
  4. Array Manipulation
  5. Discussions

Array Manipulation

  • tomade
     + 3 comments

    Yes, that makes more sense and saves on memory and running time. Using a defaultdict in Python:

    from collections import defaultdict

sums = defaultdict(int)
_, n_ranges = (int(x) for x in input().split())

for _ in range(n_ranges):
    start, stop, value = (int(x) for x in input().split())
    sums[start] += value
    sums[stop+1] -= value

max_val = running_val = 0
for _, val in sorted(sums.items()):
    running_val += val
    max_val = max(max_val, running_val)

print(max_val)