Submission #1166848

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166848		Sang	Nile (IOI24_nile)	C++20	Compilation error	0 ms	0 KiB

nile

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

#define int long long
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
#define FORD(i, a, b) for (int i = (a), _b = (b); i >= _b; i--)
#define fi first
#define se second
#define pb push_back
#define ALL(a) (a).begin(), (a).end()
#define task "kbsiudthw"

typedef vector<int> vi;
typedef pair<int, int> ii;
typedef pair<int, ii> pii;

const int N = 1e5 + 5;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 2277;

int n;
pii a[N];
vi calculate_costs(vector<int32_t> W, vector<int32_t> A, vector<int32_t> B, vector<int32_t> E){
    n = W.size();
    FOR (i, 1, n){
        a[i] = {W[i-1], {A[i-1], B[i-1]}};
    }
    vi ans;
    sort(a + 1, a + n + 1);
    FOR (j, 0, (int)E.size() - 1){
        vector<int> dp(n + 2, 1e18);
        dp[0] = 0; dp[1] = a[1].se.fi;
        FOR (i, 2, n){
            dp[i] = dp[i-1] + a[i].se.fi;
            if (i >= 2 && a[i].fi - a[i-1].fi <= E[j]) dp[i] = min(dp[i], dp[i-2] + a[i].se.se + a[i-1].se.se);
            if (i >= 3 && a[i].fi - a[i-2].fi <= E[j]) dp[i] = min(dp[i], dp[i-3] + a[i].se.se + a[i-1].se.fi + a[i-2].se.se);
        }
        ans.pb(dp[n]);
    }
    return ans;
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    if (fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    vi ans = calculate_costs({15, 12, 2, 10, 21}, {5, 4, 5, 6, 3}, {1, 2, 2, 3, 2}, {5, 9, 1});
    for (int &x : ans) cout << x << '\n';

    return 0;
}

Compilation message (stderr)

nile.cpp: In function 'int main()':
nile.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
nile.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccnh27Mu.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccm9j9n1.o:nile.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status