Submission #216332

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
216332	2020-03-27 06:44:52	DystoriaX	Examination (JOI19_examination)	C++14	100 / 100	833 ms	42212 KiB

examination

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#include <bits/stdc++.h>
using namespace std;
const int MAX = 200010;
struct BIT{
    vector<int> bit;
    int query(int x){
        int ret = 0;
        for(; x; x -= x & (-x)) ret += bit[x];
        return ret;
    }
    void update(int x, int val){
        for(; x < MAX; x += x & (-x)) bit[x] += val;
    }
    BIT(){
        bit.assign(MAX, 0);
    }
    void init(){
        bit.assign(MAX, 0);
    }
} bitX, bitY;
 
 
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Compilation message (stderr)

examination.cpp: In function 'int main()':
examination.cpp:73:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &q);
     ~~~~~^~~~~~~~~~~~~~~~
examination.cpp:78:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &pt[i].x, &pt[i].y);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:87:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d", &qr[i].x, &qr[i].y, &qr[i].z);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 20 / 20
• Subtask 3: 21 / 21
• Subtask 4: 57 / 57