Submission #1732486

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Source Code Expand

#include <iostream>
#include <string>
#include <algorithm>
#define	MOD = 1000000007;
using namespace std;

int main()
{
	int N;
	string S;

	cin >> N >> S;

	int c = 0;
	int max = 0;
	for (int i = 0; i < S.size(); i++)
	{
		if (S[i] == 'D')
		{
			c--;
		}
		else if (S[i] == 'I')
		{
			c++;
		}
		if (max < c)
		{
			max = c;
		}
	}

	cout << max << endl;
	return 0;
}

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