Submission #471123

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
471123	2021-09-07 11:21:50	keta_tsimakuridze	Street Lamps (APIO19_street_lamps)	C++14	0 / 100	692 ms	62540 KiB

street_lamps

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#include<bits/stdc++.h>
#define f first
#define s second
#define int long long
#define pii pair<int,int>
using namespace std;
const int N = 3e5 + 5, mod = 1e9 + 7; // !
int t, tree[4 * N],Q, fw[N],a[N],n,ans[N];
string s;
vector<pii> add[N],q[N];
vector<int> rem[N];
void update(int u,int ind,int l,int r) {
  if(l > ind || r < ind) return;
  if(l == r) {
    tree[u] ^= 1;
    return;
  }
  int mid = (l + r)/2;
  update(2 * u,ind,l,mid); update(2 * u + 1,ind,mid + 1, r);
  tree[u] = min(tree[2 * u], tree[2 *u + 1]);
}
int getL(int u,int ind,int l,int r) {
  if(l > ind) return 0;
  if(l == r) {
    if(tree[u]) {
      return l;
    }
    return l + 1;
  }
  int mid = (l + r)/2;
 
 
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Compilation message (stderr)

street_lamps.cpp: In function 'void upd(long long int, long long int)':
street_lamps.cpp:55:6: warning: statement has no effect [-Wunused-value]
   55 |  for(ind;ind >= 1; ind -= ind & (-ind)) fw[ind] += val;
      |      ^~~
street_lamps.cpp: In function 'long long int get(long long int)':
street_lamps.cpp:59:6: warning: statement has no effect [-Wunused-value]
   59 |  for(ind; ind <= n; ind += ind & (-ind)) ans += fw[ind];
      |      ^~~
street_lamps.cpp: At global scope:
street_lamps.cpp:62:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   62 | main(){
      | ^~~~
street_lamps.cpp: In function 'int main()':
street_lamps.cpp:98:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |   for(int j = 0; j < add[i].size(); j++) {
      |                  ~~^~~~~~~~~~~~~~~
street_lamps.cpp:102:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |   for(int j = 0; j < q[i].size(); j++) {
      |                  ~~^~~~~~~~~~~~~
street_lamps.cpp:106:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  106 |   for(int j = 0; j < rem[i].size(); j++) {
      |                  ~~^~~~~~~~~~~~~~~
street_lamps.cpp:70:6: warning: unused variable 'ind' [-Wunused-variable]
   70 |  int ind = 0,start = 0;
      |      ^~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20