Substring 2

AtCoder

IDabc196_f

Time3000ms

Memory256MB

Difficulty—

Given are strings $S$ and $T$ consisting of `0` and `1`. We will change some of the characters in $T$ so that $T$ becomes a substring of $S$. How many characters do we need to change at least? What is a substring? $T$ is said to be a substring of $S$ when some contiguous part of $S$ matches $T$. For example, `000` is a substring of `10001`, while `11` is not. ## Constraints * Each of $S$ and $T$ consists of `0` and `1`. * $1 ≤ |T| ≤ |S| ≤ 10^6$ ## Input Input is given from Standard Input in the following format: $S$ $T$ [samples]

Samples

Input #1

0001
101

Output #1

1

Changing $T$ to `001` makes it match the $2$\-nd through $4$\-th characters of $S$.

Input #2

0101010
1010101

Output #2

Input #3

10101000010011011110
0010011111

Output #3

API Response (JSON)

{
  "problem": {
    "name": "Substring 2",
    "description": {
      "content": "Given are strings $S$ and $T$ consisting of `0` and `1`.   We will change some of the characters in $T$ so that $T$ becomes a substring of $S$.   How many characters do we need to change at least? Wha",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 3000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc196_f"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Given are strings $S$ and $T$ consisting of `0` and `1`.  \nWe will change some of the characters in $T$ so that $T$ becomes a substring of $S$.  \nHow many characters do we need to change at least?\nWha...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments