oj.uz

답안 #84682

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
84682 2018-11-16T13:53:59 Z wjoao Kronican (COCI16_kronican) C++11
100 / 100
 1167 ms 8884 KB 
#include<bits/stdc++.h>
#define maxn 25
#define maxn2 ((1<<21)+5)
#define inf 0x3f3f3f3f

using namespace std;

int ma[maxn][maxn], pd[maxn2], n, k;
int solve(int bitmask, int count){
  if(pd[bitmask] != inf) return pd[bitmask];
  if(count >= k) return 0;

  for(int i = 0; i < n; i++){
    if(bitmask & (1<<i)) continue;
    for(int j = 0; j < n; j++){
      if(i==j) continue;
      if(bitmask & (1<<j)) continue;
      pd[bitmask] = min(pd[bitmask],
        ma[i][j] + solve(bitmask|(1<<i), count+1)
      );
    }

  }
  return pd[bitmask];
}

int main(){
  scanf(" %d %d", &n, &k);
  memset(pd, inf, sizeof pd);
  k = n-k;
  for(int i = 0; i < n; i++) for(int j = 0; j < n; j++ )
    scanf("%d", &ma[i][j]);
  printf("%d\n", solve(0, 0));
  return 0;
}

Compilation message

kronican.cpp: In function 'int main()':
kronican.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %d %d", &n, &k);
   ~~~~~^~~~~~~~~~~~~~~~~~
kronican.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &ma[i][j]);
     ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 8568 KB Output is correct
2 Correct 10 ms 8692 KB Output is correct
3 Correct 9 ms 8740 KB Output is correct
4 Correct 10 ms 8740 KB Output is correct
5 Correct 18 ms 8820 KB Output is correct
6 Correct 29 ms 8820 KB Output is correct
7 Correct 51 ms 8884 KB Output is correct
8 Correct 109 ms 8884 KB Output is correct
9 Correct 1167 ms 8884 KB Output is correct
10 Correct 115 ms 8884 KB Output is correct