Submission #866682

#	Time	Username	Problem	Language	Result	Execution time	Memory
866682		maks007	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include "bits/stdc++.h"
#include "grader.cpp"

using namespace std;

vector<int> find_subset(int l, int r, vector<int> a) {
   // cout << "DSKDJ:ASKLDJ:AS";
    vector <int> ans, dp(r+1, 0), path(r+1, -1);
    dp[0] = 1;
    path[0] = -1;
    for(int coin = 0; coin < a.size(); coin ++) {
        // cout << coin << " ";
        for(int j = r; j >= 0; j --) {
            if(j-a[coin] >= 0) {
                if(dp[j-a[coin]] && dp[j] == 0) {
                    dp[j] |= dp[j-a[coin]];
                    path[j] = coin;
                }
            }
        }
    }
    for(int i = l; i <= r; i ++) {
        if(dp[i]) {
            for(int u = i;;) {
                if(path[u] == -1) break;
                ans.push_back(path[u]);
                u -= a[path[u]];
            }
            return ans;
        }
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:12:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(int coin = 0; coin < a.size(); coin ++) {
      |                       ~~~~~^~~~~~~~~~
/usr/bin/ld: /tmp/ccuuV0Cl.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccdBEFzn.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status