Submission #433204

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
4332042021-06-19 08:03:57qwerasdfzxcl역사적 조사 (JOI14_historical)C++14
100 / 100
1758 ms5664 KiB
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const int BUCKET = 320;
struct Query{
int s, e, x;
Query(){}
Query(int _s, int _e, int _x): s(_s), e(_e), x(_x) {}
bool operator<(const Query &Q) const{
if (s/BUCKET==Q.s/BUCKET) return e<Q.e;
return s/BUCKET<Q.s/BUCKET;
}
}query[100100];
int a[100100], idx[100100];
ll ans[100100];
vector<int> v;
struct Seg{
ll tree[200200];
int sz;
void init(int n) {sz=n;}
void update(int p, int val){
for (tree[p+=sz]+=val;p>1;p>>=1) tree[p>>1] = max(tree[p], tree[p^1]);
}
ll query(int l){
int r = sz;
ll ret = 0;
for (l +=sz, r += sz;l<r;l>>=1, r>>=1){
if (l&1) ret = max(ret, tree[l++]);
if (r&1) ret = max(tree[--r], ret);
 
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Compilation message (stderr)

historic.cpp: In function 'int main()':
historic.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     scanf("%d %d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~
historic.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         scanf("%d", a+i);
      |         ~~~~~^~~~~~~~~~~
historic.cpp:47:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         scanf("%d %d", &query[i].s, &query[i].e);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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