Submission #428296

#	Time	Username	Problem	Language	Result	Execution time	Memory
428296		Popax21	Finding Routers (IOI20_routers)	C++14	37 / 100	2 ms	284 KiB

routers

#include <stdio.h>
#include "routers.h"

std::vector<int> find_routers(int l, int n, int q) {
    std::vector<int> rs(n);
    rs[0] = 0;

    int pr = 0;
    for(int p = 1; p <= l; p++) {
        int r = use_detector(p);

        if(r != pr) {
            //Calculate distance between routers
            rs[r] = 2*p - rs[pr];
            if(r > pr) rs[r] -= 2;
            //printf("pr %d r %d p %d pp %d p' %d\n", pr, r, p, rs[pr], rs[r]);
            
            pr = r;
            p = rs[r] + 1;
        }
    }

    return rs;
}

• Subtask 1: 16 / 16
• Subtask 2: 21 / 21
• Subtask 3: 0 / 23
• Subtask 4: 0 / 40