Submission #14,000

2025-01-09 16:37:50

cpp17

Accepted 50/50

85ms

4324 KiB

#include <iostream>
#include <vector>


using namespace std;



int main(){
    int n, m;
    cin >> n >> m;
    vector<int> diff(n+1,0);
    for (int i=0;i<m;i++){
        int temp[2];
        cin >> temp[0] >> temp[1];
        diff[temp[0]]++;
        diff[temp[1]]--;
    }
    int curr=0 ,ures=0;
    for (int i=1;i<n+1;i++){
        curr+=diff[i];
        if (curr==0) ures++;
        while (i<n && diff[i+1]==0) i++;
    }
    if (diff[n]!=0) ures--;
    cout << ures;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	85ms	4148 KiB
		3	Accepted	2/2	1ms	316 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	316 KiB
		7	Accepted	2/2	1ms	316 KiB
		8	Accepted	2/2	1ms	316 KiB
		9	Accepted	2/2	1ms	316 KiB
		10	Accepted	2/2	1ms	316 KiB
		11	Accepted	2/2	1ms	564 KiB
		12	Accepted	2/2	2ms	776 KiB
		13	Accepted	3/3	4ms	540 KiB
		14	Accepted	3/3	8ms	1076 KiB
		15	Accepted	3/3	4ms	1128 KiB
		16	Accepted	3/3	61ms	4148 KiB
		17	Accepted	3/3	63ms	4320 KiB
		18	Accepted	3/3	70ms	4148 KiB
		19	Accepted	3/3	8ms	2068 KiB
		20	Accepted	3/3	9ms	2372 KiB
		21	Accepted	3/3	78ms	4324 KiB
		22	Accepted	3/3	78ms	4064 KiB