Submission #1086579

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1086579	2024-09-11 05:04:54	nathan4690	Two Currencies (JOI23_currencies)	C++17	100 / 100	548 ms	54568 KiB

currencies

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// The 22nd Japanese Olympiad in Informatics (JOI 2022/2023)
// Spring Training/Qualifying Trial
// March 18–22, 2023 (Komaba, Tokyo)
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define ld long double
#define el cout << '\n'
#define f1(i,n) for(int i=1;i<=n;i++)
#define __file_name ""
using namespace std;
const ll maxn = 4e5+5, inf=1e18;
struct FenwickTree{
    int n;
    vector<long long> bit;
    FenwickTree(){}
    FenwickTree(int n): n(n), bit(n+1, 0LL){}
    void update(int idx, long long v){
        if(idx <= 0) return;
        for(;idx<=n;idx+=(idx&-idx)) bit[idx]+=v;
    }
    long long getSum(int idx){
        if(idx <= 0) return 0;
        long long res = 0;
        for(;idx;idx-=idx&-idx) res += bit[idx];
        return res;
    }
};
 
 
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Compilation message (stderr)

currencies.cpp: In function 'int main()':
currencies.cpp:169:12: warning: unused variable 'sum' [-Wunused-variable]
  169 |         ll sum = 0;
      |            ^~~
currencies.cpp:144:9: warning: unused variable 'ttt' [-Wunused-variable]
  144 |     int ttt = 0;
      |         ^~~
currencies.cpp:128:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  128 |         freopen(__file_name ".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
currencies.cpp:129:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  129 |         freopen(__file_name ".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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