Submission #539483

#	Time	Username	Problem	Language	Result	Execution time	Memory
539483		ddy888	Kpart (eJOI21_kpart)	C++17	Compilation error	0 ms	0 KiB

Main

// #undef _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pb push_back
// #define fi first
// #define si second
// #define ar array
// typedef pair<int,int> pi;
// typedef tuple<int,int,int> ti;  
// void debug_out() {cerr<<endl;}
// template <typename Head, typename... Tail>
// void debug_out(Head H, Tail... T) {cerr<<" "<<to_string(H);debug_out(T...);}
// #define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
 
int T;
int N;
 
int main() {
    fast;
    scanf("%d", &T);
    while (T--) {
        cin >> N;
        vector<int> A(N + 1), ps(N + 1);
        for (int i = 1; i <= N; ++i) {
            scanf("%d", &A[i]]);
            ps[i] = ps[i - 1] + A[i];
        }
        vector<vector<int> > dp(N + 1, vector<int>(50100));
        vector<int> cannot(N + 1);
        for (int en = 1; en <= N; ++en) {
            dp[en][0] = en;
            if (A[en] <= 50000) dp[en][A[en]] = en;
            for (int value = 1; value <= 50000; ++value) {
                if (value >= A[en]) dp[en][value] = max(dp[en - 1][value - A[en]], dp[en - 1][value]);
                else dp[en][value] = dp[en - 1][value];
            }
 
            for (int i = 1; i <= en; ++i) {
                int sum = ps[en] - ps[i - 1];
                if (sum % 2 != 0 || dp[en][sum / 2] < i) cannot[en - i + 1] = 1; 
            }
        }       
        vector<int> ans;
        for (int i = 1; i <= N; ++i) if (!cannot[i]) ans.pb(i);
        cout << ans.size() << ' ';
        for (auto i: ans) cout << i << ' ';
        cout << '\n';
    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:26:30: error: expected ')' before ']' token
   26 |             scanf("%d", &A[i]]);
      |                  ~           ^
      |                              )
Main.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     scanf("%d", &T);
      |     ~~~~~^~~~~~~~~~