Submission #282806

#	Time	Username	Problem	Language	Result	Execution time	Memory
282806		Ozy	Rail (IOI14_rail)	C++17	30 / 100	84 ms	512 KiB

rail

#include "rail.h"
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for (int i = (a); i <= (b); i++)

void findLocation(int N, int first, int location[], int stype[])
{
    int prim,pos,dis,MIN,a,b;

    MIN = -1;
    rep(i,1,N-1) {
        dis = getDistance(0,i);
        if (MIN == -1 || dis < MIN) {
            MIN = dis;
            pos = first + dis;
            prim = i;
        }
    }

    location[0] = first;
    location[prim] = pos;
    stype[0] = 1;
    stype[prim] = 2;

    rep(i,1,N-1) {
        if (i != prim) {

            a = getDistance(0,i);
            b = getDistance(prim,i);

            if (a < b) {
                location[i] = first + a;
                stype[i] = 2;
            }
            else {
                location[i] = pos - b;
                stype[i] = 1;
            }

        }
    }
}

Compilation message (stderr)

rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:21:14: warning: 'prim' may be used uninitialized in this function [-Wmaybe-uninitialized]
   21 |     location[prim] = pos;
      |              ^~~~
rail.cpp:21:20: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   21 |     location[prim] = pos;
      |     ~~~~~~~~~~~~~~~^~~~~

• Subtask 1: 8 / 8
• Subtask 2: 22 / 22
• Subtask 3: 0 / 26
• Subtask 4: 0 / 44