Submission #794264

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
794264	2023-07-26 11:41:54	79brue	Triangle Collection (CCO23_day2problem3)	C++17	0 / 25	4 ms	676 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
struct Fenwick{
    int n;
    ll tree[200002];
    void init(int _n){
        n = _n;
        for(int i=1; i<=n; i++) tree[i] = 0;
    }
    void add(int x, ll y){
        while(x<=n){
            tree[x] += y;
            x += x&-x;
        }
    }
    ll sum(int x){
        ll ret = 0;
        while(x){
            ret += tree[x];
            x -= x&-x;
        }
        return ret;
    }
 
 
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:125:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  125 |     scanf("%d %d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp:126:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  126 |     for(int i=1; i<=n; i++) scanf("%lld", &arr[i]), half[i] = arr[i]/2;
      |                             ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp:139:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  139 |         scanf("%d %lld", &x, &v);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~

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