Submission #1302232

#	Time	Username	Problem	Language	Result	Execution time	Memory
1302232		souvenir_vayne	Aliens (IOI16_aliens)	C++20	Compilation error	0 ms	0 KiB

aliens

#include <bits/stdc++.h>
#include "aliens.h"
#define pb push_back
#define F0R(var) for (; (var) > 0; --(var))
#define endl '\n'
template<typename... Ts>
void debug_out(const Ts&... ts) {
    std::cerr << "DEBUG:";
    if constexpr (sizeof...(Ts) > 0) {
        ((std::cerr << ' ' << ts), ...);
    }
    std::cerr << '\n';
}
#define f first
#define FINOUT cin.tie(0), cout.tie(0), ios::sync_with_stdio(0)
#define s second
#define debug(...) debug_out(__VA_ARGS__)
#define all(x) x.begin(), x.end()
using namespace std;
typedef pair<long long, long long> pii;
typedef vector<long long> vi;

long long take_photos(long long n, long long m, long long k, std::vector<long long> r, std::vector<long long> c) {
    vector<long long> minL(m + 1);
    
    iota(all(minL), 1);
    for(long long i = 0; i < n; i++) {
        if(r[i] < c[i])
            swap(r[i], c[i]);

        r[i]++, c[i]++;
        minL[r[i]] = min(minL[r[i]], c[i]);
    }


    long long ini = 0, mid, end = 1e13, ans;
    while(ini <= end) {
        mid = (ini + end) / 2;
        vector<pii> dp(m + 1, {1e13, 1});
        dp[0] = {0, 0};


        for(long long i = 1; i <= m; i++) {
            if(minL[i] == i + 1) 
                dp[i] = dp[i - 1];
            
            for(long long j = min(i, minL[i]); j >= 1; j--) { 
                j = min(j, minL[j]);
                dp[i] = min(dp[i], {dp[j - 1].f + mid + (i - j + 1) * (i - j + 1), dp[j - 1].s + 1});
            }
        }

        if(dp[m].s <= k) {
            ans = dp[m].f - k * mid;
            end = mid - 1;
        }
        else ini = mid + 1;
    }

    return ans;
}

Compilation message (stderr)

aliens.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
aliens_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
/usr/bin/ld: /tmp/ccBJ0Eeo.o: in function `main':
grader.cpp:(.text.startup+0xff): undefined reference to `take_photos(int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status