Submission #1141332

#	Time	Username	Problem	Language	Result	Execution time	Memory
1141332		harry_tm_18	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
const int N = 1e5;
vector<int> adj[N];
vector<bool> c(N);


vector<int> find_subset(int l, int u, vector<int> w){

    int n = w.size();
    vector<pair<ll,ll>> a;

    for(int i=0; i<n; ++i){   
        a.emplace_back(w[i],i);
    }
    sort(a.begin(), a.end());

    vector<ll> suffix(n), ans;
    suffix[n-1] = a[n-1].first;

    for(int i=n-2; i>=0; --i){
        suffix[i] = suffix[i+1] + a[i].first;
    } 

    ll prefixSum = 0;

    for(int i=0; i<n; ++i){
        if(prefixSum > u) break;
        if(prefixSum <= l){
            for(int j=0; j<=i; ++i){
                ans.push_back(a[j].second);
            }
            return ans;
        }

        ll v = 0, g = n-1;

        while(v <= g){
            int mid = v + (g - v) / 2;

            if(prefixSum + suffix[mid] >= l && prefixSum + suffix[mid] <= u){
                for(int j=0; j<i; ++j){
                    ans.push_back(a[j].second);
                }
                for(int j=mid+1; j<n; ++j){
                    ans.push_back(a[j].second);
                }
                return ans;
            } else if(prefixSum + suffix[mid] > u){
                v = mid + 1;
            } else {
                g = mid - 1;
            }
        }
        prefixSum += a[i].first;
    }

    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:35:20: error: could not convert 'ans' from 'vector<long long int>' to 'vector<int>'
   35 |             return ans;
      |                    ^~~
      |                    |
      |                    vector<long long int>
molecules.cpp:50:24: error: could not convert 'ans' from 'vector<long long int>' to 'vector<int>'
   50 |                 return ans;
      |                        ^~~
      |                        |
      |                        vector<long long int>
molecules.cpp:60:12: error: could not convert 'ans' from 'vector<long long int>' to 'vector<int>'
   60 |     return ans;
      |            ^~~
      |            |
      |            vector<long long int>
molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~