제출 #1105001

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1105001		KasymK	Kpart (eJOI21_kpart)	C++17	10 / 100	2055 ms	444 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) { return a > b ? a = b, 1 : 0; }
template<class T>bool umax(T& a, T b) { return a < b ? a = b, 1 : 0; }

bool is(deque<int> &dq){
    int wow = accumulate(all(dq), 0);
    if(wow&1)
        return 0;
    vector<bool> dp(wow+1, false);
    dp[0] = 1;
    for(int &to : dq)
        for(int i = wow; i >= to; --i)
            if(dp[i-to])
                dp[i] = 1;
    return dp[wow/2];
}

int main(){
    int t;
    scanf("%d", &t);
    while(t--){
        int n;
        scanf("%d", &n);
        vector<int> v(n+1);
        for(int i = 1; i <= n; ++i){
            int x;
            scanf("%d", &x);
            v[i] = x;
        }
        vector<int> A;
        for(int k = 2; k <= n; ++k){
            deque<int> dq;
            bool ok = 1;
            for(int i = 1; i <= k; ++i)
                dq.pb(v[i]);
            ok &= is(dq);
            for(int i = k+1; i <= n; ++i){
                dq.pb(v[i]);
                dq.pop_front();
                ok &= is(dq);
            }
            if(ok)
                A.pb(k);
        }
        printf("%d ", (int)A.size());
        tr(it, A)
        printf("%d ", *it);
        puts("");
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:31:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |     scanf("%d", &t);
      |     ~~~~~^~~~~~~~~~
Main.cpp:34:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |         scanf("%d", &n);
      |         ~~~~~^~~~~~~~~~
Main.cpp:38:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |             scanf("%d", &x);
      |             ~~~~~^~~~~~~~~~

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