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답안 #8205

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
8205 2014-09-06T14:49:19 Z gs14004 생물 실험 (IZhO13_expgorl) C++
100 / 100
 4 ms 1268 KB 
#include <cstdio>
#include <cmath>
#include <utility>
#include <algorithm>
using namespace std;
typedef long long lint;
typedef pair<lint,lint> pi;

int k;
char s[10005];
pi afterCycle, a[10005], laser, ainta, mp[150];
lint minv, maxv;

lint dist(pi x, pi y){
    return (y.second - x.second)*(y.second - x.second) + (y.first - x.first)*(y.first - x.first);
}
pi mv(pi x, int time){return pi(x.first + afterCycle.first * time, x.second + afterCycle.second * time);}
lint f(pi x, int t){return dist(laser,mv(x,t));}

void input(){
    scanf("%d %s",&k,s);
    scanf("%lld %lld %lld %lld",&laser.first,&laser.second,&ainta.first,&ainta.second);
    mp['I'] = pi(0ll,0ll);
    mp['L'] = pi(-1ll,0ll);
    mp['R'] = pi(1ll,0ll);
    mp['B'] = pi(0ll,-1ll);
    mp['F'] = pi(0ll,1ll);
}

int main(){
    input();
    minv = maxv = dist(laser,ainta);
    pi x = ainta;
    for (int i=0; s[i]; i++) {
        x.first += mp[s[i]].first;
        x.second += mp[s[i]].second;
        a[i] = x;
    }
    afterCycle = pi(x.first - ainta.first,x.second - ainta.second);
    for (int i=0; s[i]; i++) {
        int s = 0, e = k-1, m1, m2;
        for (int j=0; j<50; j++){
            m1 = (2*s + e)/3;
            m2 = (s + 2*e)/3;
            if(f(a[i],m1) < f(a[i],m2)) e = m2;
            else s = m1;
        }
        for (int j=s; j<=e; j++) {
            minv = min(minv,f(a[i],j));
        }
        maxv = max(maxv,f(a[i],0));
        maxv = max(maxv,f(a[i],k-1));
    }
    printf("%lf\n%lf",sqrt(minv),sqrt(maxv));
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 1268 KB Output is correct
2 Correct 0 ms 1268 KB Output is correct
3 Correct 0 ms 1268 KB Output is correct
4 Correct 0 ms 1268 KB Output is correct
5 Correct 0 ms 1268 KB Output is correct
6 Correct 0 ms 1268 KB Output is correct
7 Correct 0 ms 1268 KB Output is correct
8 Correct 0 ms 1268 KB Output is correct
9 Correct 4 ms 1268 KB Output is correct
10 Correct 4 ms 1268 KB Output is correct
11 Correct 4 ms 1268 KB Output is correct
12 Correct 4 ms 1268 KB Output is correct
13 Correct 4 ms 1268 KB Output is correct
14 Correct 4 ms 1268 KB Output is correct
15 Correct 4 ms 1268 KB Output is correct
16 Correct 4 ms 1268 KB Output is correct
17 Correct 4 ms 1268 KB Output is correct
18 Correct 4 ms 1268 KB Output is correct
19 Correct 4 ms 1268 KB Output is correct
20 Correct 4 ms 1268 KB Output is correct