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Submission #206603

# Submission time Handle Problem Language Result Execution time Memory
206603 2020-03-04T07:47:13 Z kshitij_sodani Strange Device (APIO19_strange_device) C++17
35 / 100
 632 ms 40832 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef int64_t llo;
#define ak first
#define  bk 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;
	llo s=0;
	vector<pair<llo,llo>> ac;
	for(llo i=0;i<n;i++){
		cin>>aa>>bb;
		if(bb-aa+1>=x){
			s=1;
			continue;
		}
		/*if(bb-aa+1>=x){
			ac.pb(mp(0,x-1));
		}*/
		aa%=x;
		bb%=x;
		if(bb<aa){
			ac.pb(mp(aa,x-1));
			ac.pb(mp(0,bb));
		}
		else{
			ac.pb(mp(aa,bb));
		}

	}
	if(s==1){
		cout<<(long double)x<<endl;
		return 0;
	}
/*	if(s==1){
		cout<<x<<endl;
	}
	else{*/
		vector<pair<llo,llo>> prev;
		sort(ac.begin(),ac.end());

		for(auto cc:ac){
			if(prev.size()==0){
				prev.pb(cc);
			}
			else{
				if(cc.ak>prev[prev.size()-1].bk){
					prev.pb(cc);
				}
				else{
					prev[prev.size()-1].bk=max(prev[prev.size()-1].bk,cc.bk);
				}
			}
		}
		llo tot=0;
		for(llo i=0;i<prev.size();i++){
			tot+=prev[i].bk-prev[i].ak+1;
		}
	/*	if(s==1 and tot<x){
			while(true){
				int y=1;
			}
		}
*/
		cout<<tot<<endl;
	//}













	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:81:16: 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 Correct 5 ms 376 KB Output is correct
2 Correct 11 ms 888 KB Output is correct
3 Correct 10 ms 892 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 296 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 11 ms 888 KB Output is correct
17 Correct 65 ms 4972 KB Output is correct
18 Incorrect 5 ms 376 KB Output isn't correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Incorrect 5 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 380 KB Output is correct
4 Correct 5 ms 380 KB Output is correct
5 Correct 408 ms 16980 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 557 ms 40744 KB Output is correct
3 Correct 552 ms 40644 KB Output is correct
4 Correct 554 ms 40832 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 557 ms 40744 KB Output is correct
3 Correct 552 ms 40644 KB Output is correct
4 Correct 554 ms 40832 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 578 ms 40708 KB Output is correct
7 Correct 571 ms 40768 KB Output is correct
8 Correct 560 ms 40660 KB Output is correct
9 Correct 615 ms 40640 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 557 ms 40744 KB Output is correct
3 Correct 552 ms 40644 KB Output is correct
4 Correct 554 ms 40832 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 61 ms 5052 KB Output is correct
7 Correct 62 ms 4968 KB Output is correct
8 Correct 57 ms 4968 KB Output is correct
9 Correct 63 ms 4980 KB Output is correct
10 Correct 57 ms 4972 KB Output is correct
11 Correct 60 ms 4968 KB Output is correct
12 Correct 56 ms 4968 KB Output is correct
13 Correct 62 ms 4972 KB Output is correct
14 Correct 58 ms 4964 KB Output is correct
15 Correct 64 ms 4968 KB Output is correct
16 Correct 60 ms 4968 KB Output is correct
17 Correct 58 ms 4968 KB Output is correct
18 Correct 575 ms 40768 KB Output is correct
19 Correct 556 ms 40796 KB Output is correct
20 Correct 616 ms 40688 KB Output is correct
21 Correct 62 ms 4972 KB Output is correct
22 Correct 58 ms 4964 KB Output is correct
23 Correct 179 ms 8668 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 63 ms 4968 KB Output is correct
3 Correct 64 ms 4968 KB Output is correct
4 Correct 632 ms 40732 KB Output is correct
5 Correct 66 ms 5144 KB Output is correct
6 Correct 61 ms 4968 KB Output is correct
7 Correct 61 ms 4976 KB Output is correct
8 Correct 65 ms 4948 KB Output is correct
9 Correct 62 ms 4968 KB Output is correct
10 Correct 63 ms 5036 KB Output is correct
11 Correct 62 ms 4968 KB Output is correct
12 Correct 60 ms 4976 KB Output is correct
13 Correct 68 ms 5096 KB Output is correct
14 Correct 622 ms 40640 KB Output is correct
15 Correct 63 ms 4968 KB Output is correct
16 Correct 584 ms 40772 KB Output is correct
17 Correct 559 ms 40768 KB Output is correct
18 Incorrect 5 ms 376 KB Output isn't correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 11 ms 888 KB Output is correct
3 Correct 10 ms 892 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 296 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 11 ms 888 KB Output is correct
17 Correct 65 ms 4972 KB Output is correct
18 Incorrect 5 ms 376 KB Output isn't correct