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Submission #22076

# Submission time Handle Problem Language Result Execution time Memory
22076 2017-04-29T07:14:50 Z 아재 goto 써요?(#1011, baactree) None (KRIII5P_3) C++14
7 / 7
 113 ms 5180 KB 
// =====================================================================================
// 
//       Filename:  i.cpp
//        Created:  2017년 04월 29일 15시 53분 37초
//       Compiler:  g++ -O2 -std=c++14
//         Author:  baactree ,  [email protected]
//        Company:  Chonnam National University
// 
// =====================================================================================

#include <bits/stdc++.h>
using namespace std;
int n;
vector<pair<int, int> > event;
const int mod=1000000007;
typedef long long ll;
ll _pow(ll a, ll b){
	if(b==0)
		return 1;
	ll temp=_pow(a, b/2);
	temp=(temp*temp)%mod;
	if(b&1)
		return (temp*a)%mod;
	return temp;
}
int main(){
	scanf("%d", &n);
	for(int i=0;i<n;i++){
		int a, b;
		scanf("%d%d", &a, &b);
		if(a>=b)
			continue;
		event.push_back({a, 1});
		event.push_back({b, 0});
	}
	sort(event.begin(), event.end());
	int cnt=0;
	ll len=0;
	ll ans=0;
	int pre=0;
	for(int i=0;i<event.size();i++){
		int x=event[i].first;
		int m=event[i].second;
		len+=(long long)(x-pre)*(_pow(2, cnt)-1+mod);
		len%=mod;
		if(m){
			ans+=_pow(2, cnt);
			ans%=mod;
			cnt++;
		}
		else{
			cnt--;
		}
		pre=x;
	}
	printf("%lld %lld\n", len, ans);
	return 0;
}

Compilation message

i.cpp: In function 'int main()':
i.cpp:41:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<event.size();i++){
               ^
i.cpp:27:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
i.cpp:30:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
                        ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2024 KB Output is correct
2 Correct 0 ms 2024 KB Output is correct
3 Correct 0 ms 2024 KB Output is correct
4 Correct 0 ms 2024 KB Output is correct
5 Correct 0 ms 2024 KB Output is correct
6 Correct 9 ms 2492 KB Output is correct
7 Correct 6 ms 2492 KB Output is correct
8 Correct 6 ms 2492 KB Output is correct
9 Correct 6 ms 2492 KB Output is correct
10 Correct 6 ms 2492 KB Output is correct
11 Correct 83 ms 5180 KB Output is correct
12 Correct 89 ms 5180 KB Output is correct
13 Correct 83 ms 5180 KB Output is correct
14 Correct 83 ms 5180 KB Output is correct
15 Correct 89 ms 5180 KB Output is correct
16 Correct 63 ms 3644 KB Output is correct
17 Correct 63 ms 3644 KB Output is correct
18 Correct 63 ms 3644 KB Output is correct
19 Correct 66 ms 3644 KB Output is correct
20 Correct 56 ms 3644 KB Output is correct
21 Correct 89 ms 5180 KB Output is correct
22 Correct 93 ms 5180 KB Output is correct
23 Correct 93 ms 5180 KB Output is correct
24 Correct 93 ms 5180 KB Output is correct
25 Correct 66 ms 5180 KB Output is correct
26 Correct 96 ms 5180 KB Output is correct
27 Correct 89 ms 5180 KB Output is correct
28 Correct 89 ms 5180 KB Output is correct
29 Correct 113 ms 5180 KB Output is correct
30 Correct 96 ms 5180 KB Output is correct
31 Correct 86 ms 5180 KB Output is correct
32 Correct 89 ms 5180 KB Output is correct
33 Correct 96 ms 5180 KB Output is correct
34 Correct 99 ms 5180 KB Output is correct
35 Correct 76 ms 5180 KB Output is correct
36 Correct 86 ms 5180 KB Output is correct
37 Correct 109 ms 5180 KB Output is correct
38 Correct 86 ms 5180 KB Output is correct
39 Correct 93 ms 5180 KB Output is correct
40 Correct 89 ms 5180 KB Output is correct
41 Correct 0 ms 2024 KB Output is correct
42 Correct 0 ms 2024 KB Output is correct
43 Correct 3 ms 2164 KB Output is correct
44 Correct 3 ms 2164 KB Output is correct
45 Correct 36 ms 3644 KB Output is correct
46 Correct 39 ms 3644 KB Output is correct
47 Correct 46 ms 3644 KB Output is correct
48 Correct 83 ms 5180 KB Output is correct
49 Correct 76 ms 5180 KB Output is correct
50 Correct 79 ms 5180 KB Output is correct