Submission #1102018

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102018		Mo_co_giai_VNOI	Nile (IOI24_nile)	C++17	Compilation error	0 ms	0 KiB

nile

#include<bits/stdc++.h>
#define maxn 1000000
#define INF LONG_MAX
#define inf 2e18
#define fo(i,x,y) for (ll i=x;i<=y;i++)
#define Fo(i,x,y,c) for (int i=x;i<=y;i+=c)
#define fo_re(i,x,y) for (int i=x;i>=y;i--)
#define Fo_re(i,x,y,c) for (int i=x;i>=y;i-=c)

#define task "LOVE"
#define fast ios_base::sync_with_stdio(0); cin.tie(); cout.tie();
#define file_init freopen(task".INP","r",stdin); freopen(task".OUT","w",stdout);

#define ll long long
#define str string
#define bo bool
#define vec vector
#define pa pair
#define pll pa<ll,ll>

#define all(x) x.begin(), x.end()
#define fi first
#define se second
#define pb push_back
#define el '\n'

                        // "PRACTICE MAKES PERFECT" //
        // - Presented by KHANH NGUYEN - THD High School for the gifted - //

using namespace std;
const ll MOD = 1e9+7;

struct BURU_AKAIBU
{
    ll w, a, b;
};
BURU_AKAIBU s[maxn];
ll n, q, cnt, res = INF;
ll x[maxn];

void Try(int i, ll d){
    fo(j,1,2){
        x[i] = j;
        if (x[i-1] == 0) x[i] = 0;
        if (i == n){
            cnt = 0;
            fo(t,1,n)
                if(x[t] == 1) cnt+=s[t].a;
                else if (x[t] == 2)
                    if (abs(s[t].w - s[t+1].w) <= d) cnt+=min(s[t].a + s[t+1].a, s[t].b + s[t+1].b);
                    else cnt+=s[t].a+s[t+1].a;
            res = min(res, cnt);
        }
        else Try(i+1, d);
    }
}

signed main ()
{
    fast;
    cin>>n;
    fo(i,1,n){
        ll w, a, b;
        cin>>w>>a>>b;
        BURU_AKAIBU B;
        B.a = a;
        B.b = b;
        B.w = w;
        s[i] = B;
    }
    //cout<<"OK"<<el;
    cin>>q;
    while(q--){
        res = INF;
        ll y; cin>>y;
        Try(1, y);
        cout<<res<<el;
    }
    return  0;
}

Compilation message (stderr)

nile.cpp: In function 'void Try(int, long long int)':
nile.cpp:49:25: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   49 |                 else if (x[t] == 2)
      |                         ^
/usr/bin/ld: /tmp/ccsDYMP6.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccPuZwU8.o:nile.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccsDYMP6.o: in function `main':
grader.cpp:(.text.startup+0x300): undefined reference to `calculate_costs(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status