Submission #1105110

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105110		KasymK	Kpart (eJOI21_kpart)	C++17	30 / 100	2070 ms	508 KiB

Main

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 1e3+5;
const int S = 1e5+5;
int v[N];
bool dp[S], ok[N];
ll par[N];

void solve(){
    int n;
    scanf("%d", &n);
    for(int i = 1; i <= n; ++i){
        int x;
        scanf("%d", &x);
        v[i] = x, ok[i] = 1, par[i] = par[i-1]+x;
    }
    ll ss = accumulate(v+1, v+n+1, 0ll);
    for(int i = 1; i <= n; ++i){
        for(int j = 0; j <= ss; ++j)
            dp[j] = 0;
        dp[0] = 1;
        for(int j = i+1; j <= n; ++j){
            int k = j-i+1;
            ll sm = par[j]-par[i-1];
            if(sm&1)
                ok[k] = 0;
            for(int to = ss; to >= v[j]; --to)
                if(dp[to-v[j]])
                    dp[to] = 1;
            if(!dp[sm/2])
                ok[k] = 0;
        }
    }
    vector<int> A;
    for(int i = 2; i <= n; ++i)
        if(ok[i])
            A.pb(i);
    printf("%d ", (int)A.size());
    tr(it, A)
    printf("%d ", *it);
    puts("");
}

int main(){
    int tt;
    scanf("%d", &tt);
    while(tt--)
        solve();
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
Main.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:58:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |     scanf("%d", &tt);
      |     ~~~~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 0 / 70