oj.uz

Submission #169001

# Submission time Handle Problem Language Result Execution time Memory
169001 2019-12-17T13:03:26 Z kshitij_sodani Strange Device (APIO19_strange_device) C++17
5 / 100
 753 ms 32832 KB 
#include <iostream>
#include <bits/stdc++.h>
#include <stdio.h>
using namespace std;
typedef long long int llo;
#define pb push_back

#define a first
#define b second

#include <iostream>
#include <fstream>
#include <set>
#include <map>
#include <algorithm>
#include <vector>


int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	llo n,aa,bb;
	cin>>n>>aa>>bb;
	pair<llo,llo> it[n];
	for(llo i=0;i<n;i++){
		cin>>it[i].a>>it[i].b;
	}
	if((bb+1)%aa==-1){
		vector<pair<llo,llo>> tt;
		for(llo i=0;i<n;i++){
			it[i].b%=bb;
			it[i].a%=bb;
			if(it[i].a<=it[i].b){
				tt.pb(make_pair(it[i].a,it[i].b));
			}
			else{
				tt.pb(make_pair(it[i].a,bb-1));
				tt.pb(make_pair(0,it[i].b));
			}

		}
		sort(tt.begin(),tt.end());
		llo tot=0;
		llo st,end;
		for(llo i=0;i<tt.size();i++){
			if(i==0){
				st=tt[i].a;
				end=tt[i].b;
			}
			else{
				if(tt[i].a<=end){
					end=max(end,tt[i].b);
				}
				else{
					tot+=end-st+1;
					st=tt[i].a;
					end=tt[i].b;
				}
			}
		}
		tot+=end-st+1;
		cout<<tot<<endl;
	}
	else{
			vector<pair<llo,llo>> tt;
			llo cc=aa*bb;
			for(llo i=0;i<n;i++){
				it[i].b%=cc;
				it[i].a%=cc;
				if(it[i].a<=it[i].b){
					tt.pb(make_pair(it[i].a,it[i].b));
				}
				else{
					tt.pb(make_pair(it[i].a,cc-1));
					tt.pb(make_pair(0,it[i].b));
				}

			}
			sort(tt.begin(),tt.end());
			llo tot=0;
			llo st,end;
			for(llo i=0;i<tt.size();i++){
				if(i==0){
					st=tt[i].a;
					end=tt[i].b;
				}
				else{
					if(tt[i].a<=end){
						end=max(end,tt[i].b);
					}
					else{
						tot+=end-st+1;
						st=tt[i].a;
						end=tt[i].b;
					}
				}
			}
			tot+=end-st+1;
			cout<<tot<<endl;
		
	}

}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:46:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(llo i=0;i<tt.size();i++){
               ~^~~~~~~~~~
strange_device.cpp:83:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(llo i=0;i<tt.size();i++){
                ~^~~~~~~~~~
strange_device.cpp:99:12: warning: 'end' may be used uninitialized in this function [-Wmaybe-uninitialized]
    tot+=end-st+1;
         ~~~^~~
strange_device.cpp:99:12: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
strange_device.cpp:62:11: warning: 'end' may be used uninitialized in this function [-Wmaybe-uninitialized]
   tot+=end-st+1;
        ~~~^~~
strange_device.cpp:62:11: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 7 ms 888 KB Output is correct
3 Correct 8 ms 888 KB Output is correct
4 Incorrect 2 ms 252 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 2 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 2 ms 380 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 457 ms 32676 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 608 ms 32724 KB Output is correct
3 Incorrect 617 ms 32724 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 608 ms 32724 KB Output is correct
3 Incorrect 617 ms 32724 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 608 ms 32724 KB Output is correct
3 Incorrect 617 ms 32724 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 67 ms 7800 KB Output is correct
3 Correct 67 ms 6636 KB Output is correct
4 Correct 753 ms 32832 KB Output is correct
5 Correct 66 ms 7788 KB Output is correct
6 Correct 66 ms 7792 KB Output is correct
7 Correct 73 ms 7840 KB Output is correct
8 Correct 68 ms 7792 KB Output is correct
9 Correct 66 ms 7792 KB Output is correct
10 Correct 66 ms 7796 KB Output is correct
11 Correct 67 ms 7788 KB Output is correct
12 Correct 61 ms 7892 KB Output is correct
13 Correct 67 ms 7760 KB Output is correct
14 Correct 666 ms 32796 KB Output is correct
15 Incorrect 68 ms 7148 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 7 ms 888 KB Output is correct
3 Correct 8 ms 888 KB Output is correct
4 Incorrect 2 ms 252 KB Output isn't correct
5 Halted 0 ms 0 KB -