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How to use lower_than method in Sure

Best Python code snippet using sure_python

day_09.py

Source:day_09.py

1# https://adventofcode.com/2021/day/92import functools3def get_lower_than(heightmap):4    rows, cols = len(heightmap), len(heightmap[0])5    lower_than = [[set() for _ in range(cols)] for _ in range(rows)]6    directions = ((1, 0), (-1, 0), (0, 1), (0, -1))7    for r in range(rows):8        for c in range(cols):9            if heightmap[r][c] == 9:10                continue11            elif heightmap[r][c] == 0:12                lower_than[r][c].update(13                    tuple(sum(x) for x in zip((r, c), d))14                    for d in directions)15            else:16                for (d_r, d_c) in directions:17                    if (18                        (r + d_r) not in range(rows) or19                        (c + d_c) not in range(cols) or20                        heightmap[r][c] < heightmap[r + d_r][c + d_c]21                    ):22                        lower_than[r][c].add((r + d_r, c + d_c))23    return lower_than24def get_basin(heightmap, low_point, lower_than):25    rows, cols = len(heightmap), len(heightmap[0])26    lower_than = get_lower_than(heightmap)27    (lp_r, lp_c) = low_point28    basin = set((low_point,))29    frontier = list(lower_than[lp_r][lp_c])30    visited = set()31    while frontier:32        (p_r, p_c) = frontier.pop()33        if (p_r, p_c) in visited:34            continue35        elif (36            (p_r, p_c) in basin or37            p_r not in range(rows) or38            p_c not in range(cols) or39            heightmap[p_r][p_c] == 940        ):41            visited.add((p_r, p_c))42            continue43        else:44            basin.add((p_r, p_c))45            visited.add((p_r, p_c))46            frontier += list(lower_than[p_r][p_c])47    return basin48def get_risk_level(heightmap):49    rows, cols = len(heightmap), len(heightmap[0])50    lower_than = get_lower_than(heightmap)51    return sum(heightmap[r][c] + 152               for r in range(rows)53               for c in range(cols)54               if len(lower_than[r][c]) == 455               )56def find_basins(heightmap):57    rows, cols = len(heightmap), len(heightmap[0])58    lower_than = get_lower_than(heightmap)59    low_points = [(r, c)60                  for r in range(rows)61                  for c in range(cols)62                  if len(lower_than[r][c]) == 463                  ]64    basin_sizes = [len(get_basin(heightmap, lp, lower_than))65                   for lp in low_points]66    return functools.reduce(67        lambda x, y: x * y,68        sorted(basin_sizes, reverse=True)[:3]69    )70if __name__ == '__main__':71    with open('input/day_09.txt', 'r') as f:72        heightmap = tuple(...

__init__.py

Source:__init__.py

1from analyze.deeppoly.transform import Transformer2import torch3class ReluTransformer(Transformer):4    def __init__(self, heuristic):5        self._heuristic = heuristic6    def _transform(self, ad, input, ads=None):7        ad_relu = ad.clone()8        # 1. setting the equations to zero for nodes with upper_bound lower than zero9        set_to_zero = (ad.upper_bounds <= 0).flatten()10        ad_relu.lower_than.A[set_to_zero, :] = 0.011        ad_relu.lower_than.v[set_to_zero, :] = 0.012        ad_relu.greater_than.A[set_to_zero, :] = 0.013        ad_relu.greater_than.v[set_to_zero, :] = 0.014        # 2. for nodes where the lower_bound is bigger than 0 we don't do anything.15        # 3. for nodes with lower_bound < 0 and upper_bound > 016        relu_mask = ((ad.lower_bounds < 0) & (ad.upper_bounds > 0)).flatten()17        # 3.1 we set the upper bounds and relational contraints:18        # x^L_j <= u_j/(u_j-l_j) * (x^(L-1) - l_j) where l_j <= x^(L-1) <= u_j19        delta = (ad.upper_bounds[relu_mask] - ad.lower_bounds[relu_mask])20        lambda_up = ad.upper_bounds[relu_mask] / delta21        c_up = - ad.lower_bounds[relu_mask] * ad.upper_bounds[relu_mask] / delta22        ad_relu.greater_than.A[relu_mask, :] *= lambda_up23        ad_relu.greater_than.v[relu_mask] *= lambda_up24        ad_relu.greater_than.v[relu_mask] += c_up25        ad_relu.greater_than.A_no_sub = torch.eye(len(relu_mask))26        ad_relu.greater_than.A_no_sub[relu_mask, :] = (torch.eye(len(relu_mask))[relu_mask] * lambda_up)27        ad_relu.greater_than.v_no_sub = torch.zeros(ad_relu.greater_than.v_no_sub.shape)28        ad_relu.greater_than.v_no_sub.T[relu_mask] = c_up29        # 3.2 for the lower bound, the heuristic..30        # x^L_j >= lambda * x^(L-1)_j31        lambda_low = self._heuristic.compute_lambda(ad.lower_bounds[relu_mask], ad.upper_bounds[relu_mask])32        ad_relu.lower_than.A[relu_mask, :] *= lambda_low33        ad_relu.lower_than.v[relu_mask] *= lambda_low34        ad_relu.lower_than.A_no_sub = torch.eye(len(relu_mask))35        ad_relu.lower_than.A_no_sub[relu_mask, :] = (torch.eye(len(relu_mask))[relu_mask] * lambda_low)36        ad_relu.lower_than.v_no_sub = torch.zeros(ad_relu.lower_than.v_no_sub.shape)37        ad_relu.lower_than.v_no_sub.T[relu_mask] = lambda_low38        #if backprop:39        #    ad_relu.upper_bounds = ad_relu.greater_than.compute_bounds_backprop(ad_relu, ads)40        #    ad_relu.lower_bounds = ad_relu.lower_than.compute_bounds_backprop(ad_relu, ads)41        #else:42        ad_relu.lower_bounds = ad_relu.lower_than.compute_bounds(input.lower_bounds, input.upper_bounds)43        ad_relu.upper_bounds = ad_relu.greater_than.compute_bounds(input.lower_bounds, input.upper_bounds)...

day9.py

Source:day9.py

1import numpy as np2inp = []3with open("day9_input.txt") as file:4    inp = [[int(y) for y in x[:-1]] for x in file]5A = np.array(inp)6lower_than = np.full_like(A,0)7lower_than[1:,:] += A[1:,:] < A[:-1,:] #above8lower_than[:-1,:] += A[:-1,:] < A[1:,:] #below9lower_than[:,1:] += A[:,1:] < A[:,:-1] #left10lower_than[:,:-1] += A[:,:-1] < A[:,1:] #right11lower_than[0,:] += 112lower_than[-1,:] += 113lower_than[:,0] += 114lower_than[:,-1] += 115risk_level = 016low_points = []17for i in range(lower_than.shape[0]):18    for j in range(lower_than.shape[1]):19        if lower_than[i,j] == 4:20            risk_level += A[i,j] + 121            low_points.append((i,j))22print("part1", risk_level)23basin_sizes = []24for low_point in low_points:25    flood = np.full_like(A, False, dtype=np.bool_)26    flood[low_point] = True27    previous_sum = 028    while np.sum(flood) > previous_sum:29        previous_sum = np.sum(flood)30        for i in range(100):31            for j in range(100):32                if flood[i,j] == False:33                    continue34                if i-1 >= 0 and A[i-1,j] != 9:35                    flood[i-1,j] = True36                if i+1 < 100 and A[i+1,j] != 9:37                    flood[i+1,j] = True38                if j-1 >= 0 and A[i,j-1] != 9:39                    flood[i,j-1] = True40                if j+1 < 100 and A[i,j+1] != 9:41                    flood[i,j+1] = True42    basin_sizes.append(previous_sum)43basin_sizes.sort()...

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