Submission #26582

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
26582	2017-07-03 09:40:21	dwarn	Bulldozer (JOI17_bulldozer)	C++14	100 / 100	1209 ms	118008 KiB

bulldozer

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#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i = (a); i < (b); ++i)
#define rrep(i,a,b) for(int i = (b); i --> (a);)
#define all(v) (v).begin(),(v).end()
#define trav(x,v) for(auto &x : (v))
#define sz(v) (int)(v).size()
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
struct ST {
  int n;
  vector<ll> sum, mx, mn, ans;
  ST(int _n) : n(_n){
    while(__builtin_popcount(n) > 1) ++n;
    sum.resize(2*n);
    mn.resize(2*n);
    mx.resize(2*n);
    ans.resize(2*n);
  }
  void upd(ll dif, int pos){
    for(pos += n; pos; pos /= 2){
      sum[pos] += dif;
      mn[pos] = min(0LL, sum[pos]);
      ans[pos] = mx[pos] = max(0LL, sum[pos]);
      if(pos < n){
        mn[pos] = min(mn[pos], min(mn[2*pos], sum[2*pos]+mn[2*pos+1]));
        mx[pos] = max(mx[pos], max(mx[2*pos], sum[2*pos]+mx[2*pos+1]));
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
bulldozer.cpp:48:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  rep(i,0,n) scanf("%d %d %d",xs+i,ys+i,zs+i);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 20 / 20
• Subtask 3: 35 / 35
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20