Submission #770620

#	Time	Username	Problem	Language	Result	Execution time	Memory
770620		Benmath	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

/*#include <cstdio>
#include <vector>
#include <cassert>
*/
/*
#include<bits/stdc++.h>
using namespace std;
*/
#include "molecules.h"
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
   long long int sum=0;
   vector<int>ans;
   for(int i=0;i<w.size();i++){
    if(w[i]<=u){
        sum=sum+w[i];
        ans.push_back(i);
    }
    if(sum>=l and sum<=u){
        break;
    }
   }
   if(sum>=l and sum<=u){
    return ans;
   }else{
   ans.clear();
   return ans;}
}
/*
int main() {
    int n, l, u;
    assert(3 == scanf("%d %d %d", &n, &l, &u));
    std::vector<int> w(n);
    for (int i = 0; i < n; i++)
        assert(1 == scanf("%d", &w[i]));
    std::vector<int> result = find_subset(l, u, w);


    printf("%d\n", (int)result.size());
    for (int i = 0; i < (int)result.size(); i++)
        printf("%d%c", result[i], " \n"[i == (int)result.size() - 1]);
}
*/

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:12:4: error: 'vector' was not declared in this scope; did you mean 'std::vector'?
   12 |    vector<int>ans;
      |    ^~~~~~
      |    std::vector
In file included from /usr/include/c++/10/vector:67,
                 from molecules.h:3,
                 from molecules.cpp:9:
/usr/include/c++/10/bits/stl_vector.h:389:11: note: 'std::vector' declared here
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
molecules.cpp:12:11: error: expected primary-expression before 'int'
   12 |    vector<int>ans;
      |           ^~~
molecules.cpp:13:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |    for(int i=0;i<w.size();i++){
      |                ~^~~~~~~~~
molecules.cpp:16:9: error: 'ans' was not declared in this scope
   16 |         ans.push_back(i);
      |         ^~~
molecules.cpp:23:12: error: 'ans' was not declared in this scope
   23 |     return ans;
      |            ^~~
molecules.cpp:25:4: error: 'ans' was not declared in this scope
   25 |    ans.clear();
      |    ^~~