5-02

05/05-2.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+import  time
+
+#file = "./ex.txt"
+file = "./input.txt"
+
+def merge_intervals(intervals):
+    if not intervals:
+        return []
+    intervals = sorted(intervals, key=lambda x: x[0])
+    merged = [intervals[0]]
+    for start, end in intervals[1:]:
+        last_start, last_end = merged[-1]
+        if start <= last_end:
+            merged[-1] = (last_start, max(last_end, end))
+        else:
+            merged.append((start, end))
+    return merged
+
+if __name__ == "__main__":
+    time_start = time.time()
+    solution = 0
+    fresh_ranges = []
+    input_file = open(file, "r")
+    for line in input_file:
+        line = line.strip()
+        if line == "" or "-" not in line:
+            continue
+        else:
+            a,b = line.split('-')
+            a = int(a)
+            b = int(b)
+            fresh_ranges.append([a,b])
+    id_set = set()
+    merged_ranges = merge_intervals(fresh_ranges)
+    for start, end in merged_ranges:
+        solution += (end - start + 1)
+    print(f"Solution: {solution} benötigte Zeit = {time.time()-time_start} s")