Matrix
- 2D array
Initialize
- Python
R, C = 2, 4
# INCORRECT ❌
matrix = [[0] * C] * R
# correct way ✅
matrix = [[0 for _ in range(C)] for _ in range(R)]
R, C = 2, 4
# INCORRECT ❌
matrix = [[0] * C] * R
# correct way ✅
matrix = [[0 for _ in range(C)] for _ in range(R)]