Submission #334876

#	Time	Username	Problem	Language	Result	Execution time	Memory
334876		beksultan04	Segments (IZhO18_segments)	C++14	7 / 100	5084 ms	2072 KiB

segments

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define pb push_back
#define endi puts("");
const int N = 1e6+12,INF=1e9+7;
set <int> s;
multiset <pair<int,pii> > m;
pii p[N];
int der[N];
set <int> ss;
int mex(){
    for(int i=1;i<=5001;++i){
        if (!ss.count(i))ret i;
    }
}

/*
void build(int v,int l,int r){
    if (l == r){
        der[v] = l;
        ret ;
    }
    else {
        int m = l+r>>1;
        build(v<<1,l,m);
        build((v<<1)+1,m+1,r);
        der[v] = min(der[v<<1],der[(v<<1)+1]);
    }
}

void update(int v,int l,int r,int x,int y){
    if (l == x && r == x){
        der[v] = y;
        ret ;
    }
    else {
        int m = l+r>>1;
        if (m < x){
            update((v<<1)+1,m+1,r,x,y);
        }
        else {
            update(v<<1,l,m,x,y);
        }
        der[v] = min(der[v<<1],der[(v<<1)+1]);
    }
}
*/
int fun(pii a,pii b){
    if (a.sc < b.fr || a.fr > b.sc)ret 0;
    ret min(a.sc,b.sc)-max(a.fr,b.fr)+1;
}

main(){
    int n,t,i,j,lastans=0;
    scan2(n,t)
    //build(1,1,200000);
    for (j=1;j<=n;++j){
        int type;
        scan1(type)
        if (type == 1){
            int x = mex(),l,r;
            scan2(l,r)
            ss.insert(x);
            //update(1,1,200000,x,INF);
            l = (l^(t*lastans));
            r = (r^(t*lastans));
            if (l > r)swap(l,r);
            p[x] = {l,r};
            m.insert({x,{l,r}});
        }
        if (type == 2){
            int id;
            scan1(id)
            //update(1,1,200000,id,id);
            s.erase(id);
            m.erase({id,{p[id].fr,p[id].sc}});
        }
        if (type == 3){
            int l,r,k,ans=0;
            scan3(l,r,k)
            l = (l^(t*lastans));
            r = (r^(t*lastans));

            if (l > r)swap(l,r);

            for (auto it: m){
                pii x = it.sc;
                if (fun({l,r},x) >= k)ans++;
            }
            cout <<ans<<"\n";
            lastans=ans;
        }
    }
}

Compilation message (stderr)

segments.cpp:63:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   63 | main(){
      |      ^
segments.cpp: In function 'int main()':
segments.cpp:64:13: warning: unused variable 'i' [-Wunused-variable]
   64 |     int n,t,i,j,lastans=0;
      |             ^
segments.cpp: In function 'long long int mex()':
segments.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type]
   25 | }
      | ^
segments.cpp: In function 'int main()':
segments.cpp:10:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 | #define scan2(a,b) scanf("%lld %lld",&a, &b);
      |                    ~~~~~^~~~~~~~~~~~~~~~~~~~
segments.cpp:65:5: note: in expansion of macro 'scan2'
   65 |     scan2(n,t)
      |     ^~~~~
segments.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
segments.cpp:69:9: note: in expansion of macro 'scan1'
   69 |         scan1(type)
      |         ^~~~~
segments.cpp:10:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 | #define scan2(a,b) scanf("%lld %lld",&a, &b);
      |                    ~~~~~^~~~~~~~~~~~~~~~~~~~
segments.cpp:72:13: note: in expansion of macro 'scan2'
   72 |             scan2(l,r)
      |             ^~~~~
segments.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
segments.cpp:83:13: note: in expansion of macro 'scan1'
   83 |             scan1(id)
      |             ^~~~~
segments.cpp:11:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 | #define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
      |                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
segments.cpp:90:13: note: in expansion of macro 'scan3'
   90 |             scan3(l,r,k)
      |             ^~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 15
• Subtask 3: 0 / 16
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20
• Subtask 6: 0 / 25