C - Jumping Takahashi

#include <iostream>

using namespace std;

int a[100],b[100];
int curent[10001],ina[10001];

int main()
{
    int i,n,x,j;
    cin>>n>>x;
    for(i=0;i<n;i++){
        cin>>a[i]>>b[i];
    }
    ina[0]=1;
    for(i=0;i<n;i++){
        for(j=0;j<=x;j++){
            if(ina[j]==1){
                if(a[i]+j<=x){
                    curent[a[i]+j]=1;
                }
                if(b[i]+j<=x){
                    curent[b[i]+j]=1;
                }
            }
        }
        for(j=0;j<=x;j++){
            ina[j]=curent[j];
            curent[j]=0;
        }
    }
    if(ina[x]==1)
        cout<<"Yes";
    else
        cout<<"No";
    return 0;
}