제출 #38245

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
38245		mirbek01	Bootfall (IZhO17_bootfall)	C++14	0 / 100	0 ms	4944 KiB

bootfall

# include <bits/stdc++.h>

# define pb push_back
# define fr first
# define sc second
# define mk make_pair

using namespace std;

const long long linf = 1e18 + 7;
const int inf = 1e9 + 7;
const int N = 250005;

typedef long long ll;

int n, a[N], dp[N], cnt[N], s;
vector <int> ans;

int main(){
      dp[0] = 1;

      scanf("%d", &n);

      for(int i = 1; i <= n; i ++){
            scanf("%d", &a[i]);
            s += a[i];
      }

      for(int i = 1; i <= n; i ++){
            int ss = 0;
            for(int j = 1; j <= s; j ++)
                  dp[j] = 0;
            for(int j = 1; j <= n; j ++){
                  if(j != i){
                        ss += a[j];
                        for(int k = s; k - a[j] >= 0; k --)
                              dp[k] += dp[k - a[j]];
                  }
            }
            for(int j = ss / 2 + 1; j <= ss; j ++)
                  if(dp[j]) cnt[j * 2 - ss] ++;
      }

      for(int i = 1; i <= s; i ++)
             if(cnt[i] == n) ans.pb(i);

      sort(ans.begin(), ans.end());

      printf("%d\n", ans.size());

      for(int i : ans)
            printf("%d ", i);
}

컴파일 시 표준 에러 (stderr) 메시지

bootfall.cpp: In function 'int main()':
bootfall.cpp:49:32: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
       printf("%d\n", ans.size());
                                ^
bootfall.cpp:22:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d", &n);
                      ^
bootfall.cpp:25:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &a[i]);
                               ^

• Subtask 1: 0 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 21
• Subtask 6: 0 / 35