Submission #445622

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
445622	2021-07-19 05:16:22	aris12345678	XORanges (eJOI19_xoranges)	C++14	100 / 100	143 ms	8356 KiB

xoranges

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#include <bits/stdc++.h>
using namespace std;
const int mxN = 2*1e5+5;
int a[mxN];
template<typename T> struct Fenwick_Tree {
    vector<T> bit;
    void init(int n) {
        bit.assign(mxN, 0);
    }
    void update(int pos, T val, int n) {
        while(pos < mxN) {
            bit[pos] ^= val;
            pos += (pos&(-pos));
        }
    }
    T query(int pos) {
        int ans = 0;
        while(pos > 0) {
            ans ^= bit[pos];
            pos -= (pos&(-pos));
        }
        return ans;
    }
};
Fenwick_Tree<int> bit_even, bit_odd; 
int main() {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

xoranges.cpp: In function 'int main()':
xoranges.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |     scanf("%d %d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~
xoranges.cpp:36:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         scanf("%d", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~
xoranges.cpp:44:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |         scanf("%d %d %d", &type, &l, &r);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 25 / 25
• Subtask 4: 20 / 20
• Subtask 5: 25 / 25