Submission #105890

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
105890	2019-04-15 15:07:57	IOrtroiii	Election (BOI18_election)	C++14	100 / 100	990 ms	46372 KiB

election

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#include <bits/stdc++.h>
using namespace std;
const int N = 500500;
int n;
char s[N];
struct Data {
  int sum, suf;
};
Data t[N << 2];
Data mrg(Data l, Data r) {
  Data ans;
  ans.sum = l.sum + r.sum;
  ans.suf = min(r.suf, r.sum + l.suf);
  return ans;
}
void upd(int v,int l,int r,int p,int x) {
  if (l == r) {
    t[v].sum = x;
    t[v].suf = min(x, 0);
    return;
  }
  int md = (l + r) >> 1;
  if (p <= md) upd(v << 1, l, md, p, x);
 
 
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Compilation message (stderr)

election.cpp: In function 'int main()':
election.cpp:54:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %s", &n, s + 1);
   ~~~~~^~~~~~~~~~~~~~~~~~~~
election.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &m);
   ~~~~~^~~~~~~~~~
election.cpp:59:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &l, &r);
     ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 28 / 28
• Subtask 2: 54 / 54
• Subtask 3: 18 / 18