Submission #1240635

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Source Code Expand

#include <iostream>
#include <string>
#define FOR(i,k,n) for(int(i)=(k);(i)<(n);(i)++)
using namespace std;

int main()
{
  int N;
  string S;
  cin >> N >> S;

  int x = 0;
  int x_max = 0;
  FOR(i,0, S.length()) {
    if (S[i] == 'I') ++x;
    else --x;

    // update x_max
    if (x > x_max) x_max = x;
  }

  cout << x_max << endl;

  return 0;
}

Submission Info

Judge Result