Submission #84682

#	Time	Username	Problem	Language	Result	Execution time	Memory
84682		wjoao	Kronican (COCI16_kronican)	C++11	100 / 100	1167 ms	8884 KiB

kronican

#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 (stderr)

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 / 100