Submission #1017209

#	Time	Username	Problem	Language	Result	Execution time	Memory
1017209		n3rm1n	Friend (IOI14_friend)	C++17	0 / 100	1 ms	348 KiB

friend

#include <bits/stdc++.h>
#define endl '\n'
#include "friend.h"
using namespace std;
vector < int > g[1005];
int cnt[4];
int findSample(int n, int confidence[], int host[], int protocol[])
{
    for (int i = 1; i < n; ++ i)
        g[host[i]].push_back(i);
    for (int i = 1; i < n; ++ i)
    {
        cnt[protocol[i]] ++;
    }
    if(cnt[1] == n-1)
    {
        long long curr = 0, ans = 0;
        for (int i = 0; i < n; ++ i)
        {
            curr = confidence[i];
            for (int j = 0; j < g[i].size(); ++ j)
                curr += confidence[g[i][j]];
            ans = max(ans, curr);
        }
        return ans;
    }
}

Compilation message (stderr)

friend.cpp: In function 'int findSample(int, int*, int*, int*)':
friend.cpp:21:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |             for (int j = 0; j < g[i].size(); ++ j)
      |                             ~~^~~~~~~~~~~~~
friend.cpp:27:1: warning: control reaches end of non-void function [-Wreturn-type]
   27 | }
      | ^

• Subtask 1: 0 / 11
• Subtask 2: 0 / 8
• Subtask 3: 0 / 8
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31