Problem:
Score : 100 points

Problem Statement

You are given three integers A, B and C.
Determine whether C is not less than A and not greater than B.

Constraints

-100≤A,B,C≤100

A, B and C are all integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

If the condition is satisfied, print Yes; otherwise, print No.

Sample Input 1

1 3 2

Sample Output 1

Yes

C=2 is not less than A=1 and not greater than B=3, and thus the output should be Yes.

Sample Input 2

6 5 4

Sample Output 2

No

C=4 is less than A=6, and thus the output should be No.

Sample Input 3

2 2 2

Sample Output 3

Yes

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
int main(void){
	int n, k;
	int a, b;
	int array[100001] = {0};
	int i;
	int cnt, ans;

	scanf("%d%d",&n, &k);
	for(i = 0;i < n; ++i){
		scanf("%d%d", &a, &b);
		array[a] += b;
	}

	ans = 0;
	cnt = 0;
	for(i = 0; cnt < k; ++i){
		ans = i;
		cnt += array[i];
	}
	printf("%d\n", ans);
	return 0;
}