src2020/4072_fire/fire2.cpp

#include <cstring>
#include <iostream>
using namespace std;
int main()
{
    char s[10][10];
    int b[2],l[2],r[2],ans=0;
    for (int i = 0; i < 10; i++) {
        for (int j = 0; j < 10; j++) {
            cin >> s[i][j];
            int u = s[i][j];
            if (u == 'L') {
                l[0] = i, l[1] = j;
            }
            if (u == 'B') {
                b[0] = i, b[1] = j;
            }
            if (u == 'R') {
                r[0] = i, r[1] = j;
            }
        }
    }

    int t=b[1],w=l[1];
    if(t>w){
        int e=t;
        t=w;
        w=e;
    }
    if(l[0]==b[0]&&b[0]==r[0]){
        if(r[1]>t&&r[1]<w){
            ans+=2;
        }
    }

    t=b[0],w=l[0];
    if(t>w){
        int e=t;
        t=w;
        w=e;
    }
    if(l[1]==b[1]&&b[1]==r[1]){
        if(r[0]>t&&r[0]<w){
            ans+=2;
        }
    }
    
    int ax=b[0]-l[0];
    int bx=b[1]-l[1];
    if(ax<0) ax*=-1;
    if(bx<0) bx*=-1;
    ans=ans+ax+bx-1;
    cout<<ans;
}