Alcoholic

AtCoder

IDabc189_b

Time2000ms

Memory256MB

Difficulty—

Takahashi had $N$ glasses of liquor. The amount and alcohol percentage of the $i$\-th liquor were $V_i$ milliliters and $P_i$ percent by volume, respectively. Takahashi gets drunk when his alcohol intake exceeds $X$ milliliters. Which of the $N$ liquors was he drinking when he gets drunk? If he was not drunk even after drinking all the liquors, print `-1` instead. ## Constraints * All values in input are integers. * $1 \leq N \leq 10^3$ * $0 \leq X \leq 10^6$ * $1 \leq V_i \leq 10^3$ * $0 \leq P_i \leq 100$ ## Input Input is given from Standard Input in the following format: $N$ $X$ $V_1$ $P_1$ $\vdots$ $V_N$ $P_N$ [samples]

Samples

Input #1

2 15
200 5
350 3

Output #1

2

The $1$\-st liquor contains $200\times \dfrac{5}{100}=10$ milliliters of alcohol.
The $2$\-nd liquor contains $350\times \dfrac{3}{100}=10.5$ milliliters of alcohol.
His alcohol intake exceeds $15$ milliliters for the first time when drinking the $2$\-nd liquor.

Input #2

2 10
200 5
350 3

Output #2

2

When his alcohol intake is exactly $X$ milliliters, he is still not drunk.

Input #3

Output #3

\-1

He seems to be immune to alcohol.

API Response (JSON)

{
  "problem": {
    "name": "Alcoholic",
    "description": {
      "content": "Takahashi had $N$ glasses of liquor. The amount and alcohol percentage of the $i$\\-th liquor were $V_i$ milliliters and $P_i$ percent by volume, respectively. Takahashi gets drunk when his alcohol int",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc189_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Takahashi had $N$ glasses of liquor.\nThe amount and alcohol percentage of the $i$\\-th liquor were $V_i$ milliliters and $P_i$ percent by volume, respectively.\nTakahashi gets drunk when his alcohol int...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments