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IDabc151_c

Time2000ms

Memory256MB

Difficulty—

Takahashi participated in a contest on AtCoder. The contest had $N$ problems. Takahashi made $M$ submissions during the contest. The $i$\-th submission was made for the $p_i$\-th problem and received the verdict $S_i$ (`AC` or `WA`). The number of Takahashi's correct answers is the number of problems on which he received an `AC` once or more. The number of Takahashi's penalties is the sum of the following count for the problems on which he received an `AC` once or more: the number of `WA`s received before receiving an `AC` for the first time on that problem. Find the numbers of Takahashi's correct answers and penalties. ## Constraints * $N$, $M$, and $p_i$ are integers. * $1 \leq N \leq 10^5$ * $0 \leq M \leq 10^5$ * $1 \leq p_i \leq N$ * $S_i$ is `AC` or `WA`. ## Input Input is given from Standard Input in the following format: $N$ $M$ $p_1$ $S_1$ $:$ $p_M$ $S_M$ [samples]

Samples

Input #1

2 5
1 WA
1 AC
2 WA
2 AC
2 WA

Output #1

2 2

In his second submission, he received an `AC` on the first problem for the first time. Before this, he received one `WA` on this problem.
In his fourth submission, he received an `AC` on the second problem for the first time. Before this, he received one `WA` on this problem.
Thus, he has two correct answers and two penalties.

Input #2

Output #2

1 0

Note that it is pointless to get an `AC` more than once on the same problem.

Input #3

6 0

Output #3

0 0

API Response (JSON)

{
  "problem": {
    "name": "Welcome to AtCoder",
    "description": {
      "content": "Takahashi participated in a contest on AtCoder. The contest had $N$ problems. Takahashi made $M$ submissions during the contest. The $i$\\-th submission was made for the $p_i$\\-th problem and received ",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc151_c"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Takahashi participated in a contest on AtCoder.\nThe contest had $N$ problems.\nTakahashi made $M$ submissions during the contest.\nThe $i$\\-th submission was made for the $p_i$\\-th problem and received ...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments