Submission #160634

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
160634	2019-10-29 03:00:43	dantoh000	Sterilizing Spray (JOI15_sterilizing)	C++14	100 / 100	390 ms	16676 KiB

sterilizing

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#include <bits/stdc++.h>
#define int long long
using namespace std;
int k;
int c[100005];
struct node {
    int s,e,m,v;
    node *l, *r;
    node (int _s, int _e){
        s = _s; e = _e; m = (s+e)/2;
        if (s != e){
            l = new node (s,m);
            r = new node (m+1,e);
            v = l->v + r->v;
        }
        else{
            v = c[s];
        }
    }
    void up(int x, int nv){
        if (s == e) {v = nv; return;}
        if (x > m) r -> up(x,nv);
        if (x <= m) l -> up(x,nv);
        v = l->v + r->v;
    }
    void spray(int x, int y){
        if (k == 1) return;
        //printf("%lld %lld %lld %lld %lld\n",s,e,x,y,k);
        if (s == e){
 
 
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Compilation message (stderr)

sterilizing.cpp:54:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
sterilizing.cpp: In function 'int main()':
sterilizing.cpp:58:13: warning: unused variable 'x' [-Wunused-variable]
         int x;
             ^
sterilizing.cpp:56:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld%lld",&n,&q,&k);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sterilizing.cpp:59:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&c[i]);
         ~~~~~^~~~~~~~~~~~~~
sterilizing.cpp:64:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld%lld",&s,&t,&u);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 75 / 75