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Submission #206588

# Submission time Handle Problem Language Result Execution time Memory
206588 2020-03-04T07:05:29 Z kshitij_sodani Strange Device (APIO19_strange_device) C++17
0 / 100
 5000 ms 376 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef int64_t llo;
#define a first
#define  b second
#define endl "\n"
llo gcd(llo kk,llo ll){
	if(ll==0){
		return kk;
	}
	return gcd(ll,kk%ll);
}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	llo n,a,b;
	cin>>n>>a>>b;
	llo x;
	pair<llo,llo> it;
	x=b;
	x*=(a/gcd(a,b+1));
/*	if((b+1)%a==0){
		x=b;
	}
	else{
		x=a*b;
	}*/


	llo aa,bb;
	set<pair<llo,llo>> ac;
	for(llo i=0;i<n;i++){
		cin>>aa>>bb;
		/*if(bb-aa+1>=x){
			cout<<x<<endl;
			return 0;
		}*/
		if(bb-aa+1>=x){
			while(true){
				int y=1;
			}
		}
		aa%=x;
		bb%=x;
		if(bb<aa){
			ac.insert(mp(aa,x-1));
			ac.insert(mp(0,bb));
		}
		else{
			ac.insert(mp(aa,bb));
		}

	}
	vector<pair<llo,llo>> prev;
	for(auto cc:ac){
		if(prev.size()==0){
			prev.pb(cc);
		}
		else{
			if(cc.a>prev.back().b){
				prev.pb(cc);
			}
			else{
				prev[prev.size()-1].b=max(prev[prev.size()-1].b,cc.b);
			}
		}
	}
	llo tot=0;
	for(llo i=0;i<prev.size();i++){
		tot+=prev[i].b-prev[i].a+1;
	}
	cout<<tot<<endl;













	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:43:9: warning: unused variable 'y' [-Wunused-variable]
     int y=1;
         ^
strange_device.cpp:72:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(llo i=0;i<prev.size();i++){
              ~^~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5078 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5077 ms 256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5080 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5067 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5067 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5067 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5071 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5078 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -