Submission #735215

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
735215	2023-05-03 17:39:15	arnold518	Two Currencies (JOI23_currencies)	C++17	100 / 100	1620 ms	41416 KiB

currencies

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 1e5;
int N, M, Q;
vector<pii> adj[MAXN+10];
pii A[MAXN+10];
struct SEG
{
  ll tree[MAXN*4+10];
  void init()
  {
    fill(tree, tree+MAXN*4+10, 0);
  }
  void update(int node, int tl, int tr, int l, int r, ll k)
  {
    if(l<=tl && tr<=r)
    {
      tree[node]+=k;
      return;
    }
    if(r<tl || tr<l) return;
    int mid=tl+tr>>1;
    update(node*2, tl, mid, l, r, k);
 
 
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Compilation message (stderr)

currencies.cpp: In member function 'void SEG::update(int, int, int, int, int, ll)':
currencies.cpp:29:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   29 |   int mid=tl+tr>>1;
      |           ~~^~~
currencies.cpp: In member function 'll SEG::query(int, int, int, int)':
currencies.cpp:36:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   36 |   int mid=tl+tr>>1;
      |           ~~^~~
currencies.cpp: In function 'int main()':
currencies.cpp:105:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  105 |     V.push_back({lo[i]+hi[i]>>1, i});
      |                  ~~~~~^~~~~~
currencies.cpp:80:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |  scanf("%d%d%d", &N, &M, &Q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
currencies.cpp:84:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   84 |   scanf("%d%d", &u, &v);
      |   ~~~~~^~~~~~~~~~~~~~~~
currencies.cpp:88:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |  for(int i=1; i<=M; i++) scanf("%d%d", &A[i].second, &A[i].first);
      |                          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
currencies.cpp:93:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |  for(int i=1; i<=Q; i++) scanf("%d%d%lld%lld", &B[i].first, &B[i].second, &D[i].first, &D[i].second), C[i]=lca(B[i].first, B[i].second);
      |                          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 28 / 28
• Subtask 3: 30 / 30
• Subtask 4: 32 / 32