UVa 12503 - Robot Instructions (easy simulation)

Link:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=3947
Sol:

#include <cstdio>
	int main()
	{
	int T, N, move[101], posInMove, position, check;
	char s[100];
	scanf("%d", &T);
	while (T--)
	{
	posInMove = position = 0;
	scanf("%d", &N);
	while (N--)
	{
	scanf("%s", s);
	if (s[0] == 'L')
	{
	position += move[posInMove] = -1;
	}
	else if (s[0] == 'R')
	{
	position += move[posInMove] = 1;
	}
	else
	{
	scanf("%*s %d", &check);
	position += move[posInMove] = move[check - 1];
	}
	++posInMove;
	}
	printf("%d\n", position);
	}
	}