Problem:
Score : 200 points

Problem Statement

There are N people numbered 1 to N. Each person wears a red hat or a blue hat.

You are given a string s representing the colors of the people. Person i wears a red hat if s_i is R, and a blue hat if s_i is B.

Determine if there are more people wearing a red hat than people wearing a blue hat.

Constraints

1 \leq N \leq 100

|s| = N

s_i is R or B.

Input

Input is given from Standard Input in the following format:

N
s

Output

If there are more people wearing a red hat than there are people wearing a blue hat, print Yes; otherwise, print No.

Sample Input 1

4
RRBR

Sample Output 1

Yes

There are three people wearing a red hat, and one person wearing a blue hat.

Since there are more people wearing a red hat than people wearing a blue hat, the answer is Yes.

Sample Input 2

4
BRBR

Sample Output 2

No

There are two people wearing a red hat, and two people wearing a blue hat.

Since there are as many people wearing a red hat as people wearing a blue hat, the answer is No.

Solution in JavaScript (node.js v5.12) (judge verdict: Accepted)

function Main(input) {
  const args = input.split("\n");
  const num = args[0];
  const half = num / 2;
  const str = args[1];
  var ret = false;
  var countR = 0;
  var countB = 0;

  for(var ch of str) {
    if (ch === 'R') {
      countR++;
      if (countR > half) {
        ret = true;
        break;
      }
    } else {
      countB++;
      if (countB >= half) {
        ret = false;
        break;
      }
    }
  }

  console.log(ret ? 'Yes' : 'No');
}


Main(require("fs").readFileSync("/dev/stdin", "utf8"));