Submission #1140331

#	Time	Username	Problem	Language	Result	Execution time	Memory
1140331		Almonther	Stations (IOI20_stations)	C++20	Compilation error	0 ms	0 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>

#define ll long long
#define co cout<<
using namespace std;
//stuff
const ll maxn=1005;
ll a[maxn]={};
vector<ll>v1[maxn];
ll tim=0;
void dfs(ll x,ll last,ll dep){
    if(dep%2==0) a[x]=tim++;
    for(auto i:v1[x]){
        if(i!=last) dfs(i,x,dep+1);
    }
    if(dep%2) a[x]=tim++;
}
vector<int>label(int n, int k, vector<int> u, vector<int> v){
    for(int i=0;i<u.size();i++){
        v1[u[i]].push_back(v[i]);
        v1[v[i]].push_back(u[i]);
    }
    dfs(0,0,0);
    ll cnt=0;
    vector<int>labels;
    for(int i=0;i<n;i++) labels.push_back(a[i]);
    for(int i=0;i<=n;i++) v1[i].clear();
    memset(a,0,sizeof(a));
    tim=0;
    return labels;
}
int find_next_station(int s, int t, vector<int> c) {
    sort(c.begin(),c.end());
    if(s>c[0]){
        // i have the right
        if(s<t||t<c[0]) return c[0];
        // find the max
        for(int i=1;i<c.size();i++) if(c[i-1]<t&&t<=c[i]&&) return c[i];
        return c[0];
    }
    // i have the left
    if(c.back()<t||t<s) return c.back();
    // find the min
    for(int i=c.size()-2;i>=0;i--) if(c[i+1]<t&&t>=c[i]) return c[i];
    return c.back();
}

// int main(){
    // co find_next_station(1,3,{2,3,5});
    // co find_next_station(4,3,{2,1});
    // vector<int>smth=label(5,1000,{0,1,2,3},{1,2,3,4});
    // for(int i=0;i<smth.size();i++){
    //     co i<<' '<<smth[i]<<'\n';
    // }
// }

Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:39:59: error: expected primary-expression before ')' token
   39 |         for(int i=1;i<c.size();i++) if(c[i-1]<t&&t<=c[i]&&) return c[i];
      |                                                           ^