Submission #508853

#	Time	Username	Problem	Language	Result	Execution time	Memory
508853		tabr	Gondola (IOI14_gondola)	C++17	Compilation error	0 ms	0 KiB

gondola

#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

int valid(int n, int s[]) {
    set<int> st;
    for (int i = 0; i < n; i++) {
        if (st.count(s[i])) {
            return 0;
        }
        st.emplace(s[i]);
    }
    int pos = -1;
    for (int i = 0; i < n; i++) {
        if (s[i] <= n) {
            pos = (i - s[i] + 1 + n) % n;
            break;
        }
    }
    for (int i = 0; i < n; i++) {
        if (s[i] <= n) {
            if (pos != (i - s[i] + 1 + n) % n) {
                return 0;
            }
        }
    }
    return 1;
}

int replacement(int n, int s[], int res[]) {
    int pos = -1;
    for (int i = 0; i < n; i++) {
        if (s[i] <= n) {
            pos = (i - s[i] + 1 + n) % n;
        }
    }
    vector<int> order(n);
    iota(order.begin(), order.end(), 0);
    sort(order.begin(), order.end(), [&](int i, int j) { return s[i] < s[j]; });
    int id = 0;
    int lst = n;
    for (int i : order) {
        if (s[i] <= n) {
            continue;
        }
        int j = (i - pos + n) % n + 1;
        res[id++] = j;
        for (int x = lst + 2; x <= s[i]; x++) {
            res[id++] = x - 1;
        }
        lst = s[i];
    }
    return id;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccLI7SzC.o: in function `main':
grader.cpp:(.text.startup+0xb6): undefined reference to `valid'
/usr/bin/ld: grader.cpp:(.text.startup+0x108): undefined reference to `countReplacement'
/usr/bin/ld: grader.cpp:(.text.startup+0x132): undefined reference to `replacement'
collect2: error: ld returned 1 exit status