diff --git a/2022/day07.py b/2022/day07.py
new file mode 100755
index 0000000..407eb83
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+++ b/2022/day07.py
@@ -0,0 +1,100 @@
+#!/usr/bin/python3
+"""
+Jour 07 du défi Advent Of Code pour l'année 2022
+"""
+
+def read_sample():
+    """récupère les entrées depuis le fichier texte correspondant"""
+    with open('inputs/day07.txt', 'r') as f:
+    #with open('ex.txt', 'r') as f:
+        sample = f.read().split('\n')
+    sample = [ i for i in sample if i != '' ]
+    return sample
+
+def change_dir(current_dir, args):
+    if args[0] == "/":
+        return args
+    if args == "..":
+        return "/".join(current_dir.split("/")[:-1])
+    return current_dir + "/" + args
+
+def create_dir(dir, filesystem):
+    liste = dir.split("/")[1:]
+    base = filesystem
+    for e in liste:
+        if e not in base.keys():
+            base[e] = {}
+        base = base[e]
+
+def add_file(file, filesystem, current_dir):
+    if file[0:3] == "dir":
+        return
+
+    liste = current_dir.split("/")[1:]
+    base = filesystem
+    for e in liste:
+        base = base[e]
+
+    size, name = int(file.split(" ")[0]), file.split(" ")[1]
+    base[name] = size
+
+def create_filesystem(sample):
+    filesystem = {"":{}}
+    current_dir = "/"
+    for line in sample:
+        if line == "$ ls":
+            pass
+        elif line[0] == "$": # cd
+            current_dir = change_dir(current_dir, line[5:])
+            create_dir(current_dir, filesystem)
+        else:
+            add_file(line, filesystem, current_dir)
+
+    return filesystem
+
+def part1(sample):
+    """Partie 1 du défi"""
+    fs = create_filesystem(sample)
+    upper = []
+    def compute_sizes(base):
+        if type(base) == type(1):
+            return base
+        if type(base) == type({}):
+            sum = 0
+            for i in base.keys():
+                sum += compute_sizes(base[i])
+
+            if sum <= 100000:
+                upper.append(sum)
+            return sum
+
+    total = compute_sizes(fs)
+    return sum(upper)
+
+def part2(sample):
+    """Partie 2 du défi"""
+    fs = create_filesystem(sample)
+    upper = []
+    def compute_sizes(base):
+        if type(base) == type(1):
+            return base
+        if type(base) == type({}):
+            sum = 0
+            for i in base.keys():
+                sum += compute_sizes(base[i])
+            upper.append(sum)
+            return sum
+
+    total = compute_sizes(fs)
+    upper.sort()
+    return [i for i in upper if i > total-40000000][0]
+
+
+def main():
+    """Fonction principale"""
+    sample = read_sample()
+    print(f"part1: {part1(sample)}")
+    print(f"part2: {part2(sample)}")
+
+if __name__ == "__main__":
+    main()
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