This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
int main (){
int n, m;
cin >> n >> m;
int height = 0;
int i = 0;
// first pass
int ans = 0;
for (; i < n; i++){
int h; cin >> h;
// we decrease h till h - height = m
// so we jump up to h, h should equal height + m;
if (h - height > m){
ans++;
height = height + m;
}
// Otherwise we dont do anything
else{
i++;
height = h;
break;
}
}
// second pass now we can choose to increase
for (; i < n; i++){
int h; cin >> h;
// increase h to height
if (h - height > m){
ans++;
}
height = h;
}
cout << ans;
}
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