Submission #366855

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
366855	2021-02-15 13:05:21	leinad2	조개 줍기 (KOI17_shell)	C++17	0 / 100	817 ms	126312 KiB

shell

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#include<bits/stdc++.h>
#define int long long
using namespace std;
int n, i, j, k, a, b, B[1510][1510], ans;
char c;
struct tree
{
    int seg[6010], lazy[6010];
    void busy(int id, int s, int e, int m)
    {
        seg[id*2]+=(m-s+1)*lazy[id];
        seg[id*2+1]+=(e-m)*lazy[id];
        lazy[id*2]+=lazy[id];
        lazy[id*2+1]+=lazy[id];
        lazy[id]=0;
    }
    void update(int id, int s, int e, int l, int r, int v)
    {
        if(l>r)return;
        if(e<l||r<s)return;
        if(l<=s&&e<=r)
        {
            seg[id]+=(e-s+1)*v;
            lazy[id]+=v;
            return;
        }
        int m=s+e>>1;
        busy(id, s, e, m);
        update(id*2, s, m, l, r, v);
        update(id*2+1, m+1, e, l, r, v);
 
 
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Compilation message (stderr)

shell.cpp: In member function 'void tree::update(long long int, long long int, long long int, long long int, long long int, long long int)':
shell.cpp:27:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |         int m=s+e>>1;
      |               ~^~
shell.cpp: In member function 'long long int tree::get(long long int, long long int, long long int, long long int, long long int)':
shell.cpp:37:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   37 |         int m=s+e>>1;
      |               ~^~
shell.cpp: At global scope:
shell.cpp:42:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   42 | main()
      |      ^
shell.cpp: In function 'int main()':
shell.cpp:122:11: warning: unused variable 'ans2' [-Wunused-variable]
  122 |       int ans2=0;
      |           ^~~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 34
• Subtask 3: 0 / 54