Submission #31927

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
31927	2017-09-16 08:41:14	minchurl	Beads and wires (APIO14_beads)	C++11	0 / 100	5 ms	4992 KiB

beads

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#include<stdio.h>
#include<math.h>
#include<vector>
#define LL long long
#define MAX_N 200005
#define MAX(x,y) ((x)>(y)?(x):(y))
#define inf 100000000000000LL
using namespace std;
struct emp{
  LL y,cost;
  bool operator < (emp d) const{
    return cost>d.cost;
  }
};
LL n;
LL t[5][MAX_N];
vector<emp> net[MAX_N];
void make_ans(LL x,LL pa,LL cost){
  LL i,sz,y,max_cost[4]={-inf,-inf},sum,z=0;
  sz=net[x].size();
  for(i=0;i<sz;i++){
    y=net[x][i].y;
    if(y==pa) continue;
    z++;
    make_ans(y,x,net[x][i].cost);
    t[0][x]+=MAX(t[0][y],MAX(t[1][y],t[2][y]));
  }
  if(z<1) return;
  if(pa!=0){
    for(i=0;i<sz;i++){
 
 
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Compilation message (stderr)

beads.cpp: In function 'int main()':
beads.cpp:63:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
beads.cpp:65:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld %lld",&x,&y,&cost);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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