oj.uz

Submission #169002

# Submission time Handle Problem Language Result Execution time Memory
169002 2019-12-17T13:06:15 Z kshitij_sodani Strange Device (APIO19_strange_device) C++17
5 / 100
 704 ms 33152 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==0){
		vector<pair<llo,llo>> tt;
		for(llo i=0;i<n;i++){
			it[i].b%=aa;
			it[i].a%=aa;
			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,aa-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 8 ms 888 KB Output is correct
3 Correct 8 ms 888 KB Output is correct
4 Incorrect 2 ms 376 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 256 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 376 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 457 ms 32980 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 623 ms 32940 KB Output is correct
3 Incorrect 632 ms 32980 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 623 ms 32940 KB Output is correct
3 Incorrect 632 ms 32980 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 623 ms 32940 KB Output is correct
3 Incorrect 632 ms 32980 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 6636 KB Output is correct
3 Correct 67 ms 5364 KB Output is correct
4 Correct 704 ms 33152 KB Output is correct
5 Correct 68 ms 6612 KB Output is correct
6 Correct 67 ms 6768 KB Output is correct
7 Correct 67 ms 6640 KB Output is correct
8 Correct 68 ms 6764 KB Output is correct
9 Correct 68 ms 6640 KB Output is correct
10 Correct 67 ms 6636 KB Output is correct
11 Correct 68 ms 6432 KB Output is correct
12 Correct 61 ms 6608 KB Output is correct
13 Correct 68 ms 6684 KB Output is correct
14 Correct 676 ms 33104 KB Output is correct
15 Incorrect 69 ms 7276 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 8 ms 888 KB Output is correct
3 Correct 8 ms 888 KB Output is correct
4 Incorrect 2 ms 376 KB Output isn't correct
5 Halted 0 ms 0 KB -