#include <iostream>
using namespace std;
int main()
{
	long int C,F1,F2,D,array[100][2],i,j;
	while(scanf("%ld %ld %ld %ld",&C,&F1,&F2,&D) != EOF){
		int map[2000] = {0};
		for(i = 0; i < C; i++)
		{
			cin >> array[i][0] >> array[i][1];
			for(j = array[i][0]; j <= array[i][1]; j++)
				map[j]++;
		}
		for(i = D; i >= 0; i--)
		{
			F1 -= map[i];
			if(F1 <= F2)
				break;
		}
		if(i == D)
			cout << i << endl;
		else if(F1 == F2)
			cout << i << endl;
		else if(F1 < F2)
			cout << i + 1 << endl;
	}
	return 0;
}

• Re:求指教哪里错了！！！ (616) callmelili 2013-08-02 19:37:30