From f05d888a0b621ca4e99e2b0fb6e23c097006fe41 Mon Sep 17 00:00:00 2001 From: Santo Cariotti Date: Tue, 28 May 2024 10:29:13 +0200 Subject: Init --- progs/a758.py | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 progs/a758.py (limited to 'progs/a758.py') diff --git a/progs/a758.py b/progs/a758.py new file mode 100644 index 0000000..eed8169 --- /dev/null +++ b/progs/a758.py @@ -0,0 +1,13 @@ +def first_non_repeating_character(str1): + char_order = [] + ctr = {} + for c in str1: + if c in ctr: + ctr[c] += 1 + else: + ctr[c] = 1 + char_order.append(c) + for c in char_order: + if ctr[c] == 1: + return c + return None \ No newline at end of file -- cgit v1.2.3-18-g5258