Submission #1082135

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1082135	2024-08-30 18:01:07	VinhLuu	Inside information (BOI21_servers)	C++17	100 / 100	408 ms	76976 KiB

servers

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#include <bits/stdc++.h>
//#define int long long
#define ll long long
#define fi first
#define se second
#define pb push_back
#define all(lmao) lmao.begin(), lmao.end()
using namespace std;
typedef pair<int,int> pii;
typedef tuple<int,int,int> tp;
const int N = 3e5 + 5;
const int oo = 2e9;
struct IT {
  int st[N << 2], lz[N << 2];
  void dolz(int i,int l,int r){
    if(!lz[i]) return;
    int x = lz[i], mid = (l + r) / 2; lz[i] = 0;
    st[i << 1] += x * (mid - l + 1), st[i << 1|1] += x * (r - mid);
    lz[i << 1] += x, lz[i << 1|1] += x;
  }
  void update(int i,int l,int r,int u,int v,int x){
    if(l > r || r < u || v < l) return;
    if(u <= l && r <= v){
      st[i] += x * (r - l + 1);
      lz[i] += x;
      return;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

servers.cpp: In function 'void inc(int, int, int)':
servers.cpp:99:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   99 |   for(; pos <= vr[i].size(); pos += pos & -pos) bit[i][pos] += val;
      |         ~~~~^~~~~~~~~~~~~~~
servers.cpp: In function 'void hld(int, int)':
servers.cpp:135:12: warning: unused variable 'j' [-Wunused-variable]
  135 |   for(auto j : vr[u]) bit[u].pb(0), b[u].pb(0);
      |            ^
servers.cpp: In function 'int main()':
servers.cpp:245:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  245 |     freopen(task ".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
servers.cpp:246:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  246 |     freopen(task ".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2.5 / 2.5
• Subtask 2: 2.5 / 2.5
• Subtask 3: 2.5 / 2.5
• Subtask 4: 2.5 / 2.5
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 12.5 / 12.5
• Subtask 10: 12.5 / 12.5
• Subtask 11: 17.5 / 17.5
• Subtask 12: 17.5 / 17.5