Submission #386365

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
386365	2021-04-06 13:04:53	Mamnoon_Siam	Road Construction (JOI21_road_construction)	C++17	100 / 100	5973 ms	18344 KiB

road_construction

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
#define all(v) begin(v), end(v)
#define sz(v) (int)(v).size()
#define fi first
#define se second
#define x first
#define y second
typedef pair<ll, ll> pt;
const int N = 250005;
int n, k;
pt a[N];
vi byX;
ll Ys[N]; int Ysz;
int lessY(ll y) {
  return int(lower_bound(Ys, Ys+Ysz, y) - Ys);
}
int ft[N];
void update(int pos, int val) {
  for(; pos < N; pos += pos & -pos) ft[pos] += val;
}
int query(int l, int r, int ret = 0) {
  for(l--; l > 0; l -= l & -l) ret -= ft[l];
  for(; r > 0; r -= r & -r) ret += ft[r];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

road_construction.cpp: In function 'int main(int, const char**)':
road_construction.cpp:79:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   79 |   scanf("%d %d", &n, &k);
      |   ~~~~~^~~~~~~~~~~~~~~~~
road_construction.cpp:84:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   84 |     scanf("%d %d", &x, &y);
      |     ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 7 / 7
• Subtask 4: 20 / 20
• Subtask 5: 27 / 27
• Subtask 6: 35 / 35