Submission #32160

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
32160	2017-09-28 12:08:24	minchurl	Beads and wires (APIO14_beads)	C++11	13 / 100	6 ms	5120 KiB

beads

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#include<stdio.h>
#include<math.h>
#include<vector>
#define LL long long
#define MAX_N 200005
#define inf 1000000000000000
#define MAX(x,y) ((x)>(y)?(x):(y))
using namespace std;
struct emp{
  LL y,cost;
  bool operator < (emp d) const{
    return cost>d.cost;
  }
};
LL n;
LL master[MAX_N],branch[MAX_N],mid_branch[MAX_N];
vector<emp> net[MAX_N];
LL max_cost[3];
emp max_branch[3],max_master[3];
void make_branch(LL x,LL pa,LL cost){
  LL i,sz;
  LL maxx=0,y;
  sz=net[x].size();
  for(i=0;i<sz;i++){
    if(net[x][i].y==pa) continue;
    maxx+=branch[net[x][i].y];
  }
  maxx=MAX(maxx,branch[x]);
  for(i=0;i<sz;i++){
    if(net[x][i].y==pa) continue;
 
 
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Compilation message (stderr)

beads.cpp: In function 'int main()':
beads.cpp:124:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
beads.cpp:126:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld %lld",&x,&y,&cost);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
beads.cpp: In function 'void merge(long long int, long long int, long long int)':
beads.cpp:41:7: warning: 'z' may be used uninitialized in this function [-Wmaybe-uninitialized]
  LL y,z;
       ^

• Subtask 1: 13 / 13
• Subtask 2: 0 / 15
• Subtask 3: 0 / 29
• Subtask 4: 0 / 43