poj3095

简单的模拟

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
using namespace std;

#define maxn 100

string st;
int n;

bool left(int a)
{
    for (int i = a - 1; i >= 0; i--)
    {
        if (st[i] == '|' || st[i] == '\\' || st[i] == '/')
            return false;
        if (st[i] == '.')
            return true;
    }
    return true;
}

bool right(int a)
{
    for (int i = a + 1; i < n; i++)
    {
        if (st[i] == '|' || st[i] == '\\' || st[i] == '/')
            return false;
        if (st[i] == '.')
            return true;
    }
    return true;
}

int main()
{
    //freopen("D:\\t.txt", "r", stdin);
    while (getline(cin, st) && st != "#")
    {
        n = st.length();
        int sum = 0;
        for (int i = 0; i < n; i++)
        {
            if (st[i] == '_')
            {
                sum += 0;
                continue;
            }
            if (st[i] == '.')
            {
                sum += 100;
                continue;
            }
            if (st[i] == '/')
            {
                sum += left(i) * 100;
                continue;
            }
            if (st[i] == '\\')
            {
                sum += right(i) * 100;
                continue;
            }
            if (st[i] == '|')
            {
                sum += left(i) * 50 + right(i) * 50;
                continue;
            }
        }
        cout << int(sum / double(n)) << endl;
    }
    return 0;
}