Submission #767954

#	Time	Username	Problem	Language	Result	Execution time	Memory
767954		MinaRagy06	Rail (IOI14_rail)	C++17	Compilation error	0 ms	0 KiB

rail

#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;

#ifdef MINA
int getDistance(int i, int j) {
    cout << i << ' ' << j << endl;
    int x;
    cin >> x;
    return x;
}
#else
int getDistance(int i, int j);
#endif
void findLocation(int n, int first, int location[], int stype[]) {
    location[0] = first, stype[0] = 1;
    if (n == 1) return;
    for (int i = 1; i < n; i++) {
        int x = getDistance(0, i), x2 = getDistance(i, 0);
        assert(x > 0), assert(x2 > 0);
        if (x2 == x) {
            location[i] = first + x;
            stype[i] = 2;
        } else {
            assert(x2 < x);
            location[i] = first - x2;
            stype[i] = 1;
        }
    }
    for (int i = 0; i < n; i++) {
        assert(location[i] > 0);
        assert(stype[i] == 1 || stype[i] == 2);
        if (stype[i] == 2) assert(location[i] > first);
        if (stype[i] == 1) assert(location[i] <= first);
    }
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccE3B7Fm.o: in function `findLocation(int, int, int*, int*)':
rail.cpp:(.text+0x70): undefined reference to `getDistance(int, int)'
/usr/bin/ld: rail.cpp:(.text+0x7b): undefined reference to `getDistance(int, int)'
/usr/bin/ld: /tmp/cc49MBHm.o: in function `main':
grader.cpp:(.text.startup+0x2d9): undefined reference to `findLocation'
collect2: error: ld returned 1 exit status