# include <bits/stdc++.h>
using namespace std;
const int N = 5e5 + 2;
long long n, q, d[N], p[N];
int main(){
cin >> n >> q;
int cn = 0;
for(int i = 1; i <= n; i ++){
cin >> d[i];
if(d[i] == 1) cn ++;
}
if(cn == n){
for(int i = 1; i <= q; i ++){
int t, l, r;
cin >> t >> l >> r;
int L = t - n, R = t;
if(l <= L && R <= r){
cout << R - L + 1 << endl;
continue;
}
if(l <= L && L <= r){
assert(0);
cout << r - L + 1 << endl;
continue;
}
if(l <= R && R <= r){
cout << R - l + 1 << endl;
continue;
}
cout << 0 << endl;
}
return 0;
}
for(int i = 2; i <= n; i ++){
int lo = 1, hi = 1e9;
while(hi - lo > 1){
int md = (lo + hi) >> 1;
if(d[i - 1] * md + (-(i - 1)) >= d[i])
hi = md;
else
lo = md;
}
if(d[i - 1] * lo + (-(i - 1)) >= d[i]) hi = lo;
d[i] = d[i - 1] * hi + (-(i - 1)) - 1 - (-i);
}
for(int i = 1; i <= q; i ++){
int t, l, r;
cin >> t >> l >> r;
p[0] = t;
for(int j = 1; j <= n; j ++){
p[j] = -j;
int lo = 0, hi = 1000;
while(hi - lo > 1){
int md = (lo + hi) >> 1;
if(md * d[j] + p[j] < p[j - 1])
lo = md;
else
hi = md;
}
if(hi * d[j] + p[j] < p[j - 1]) lo = hi;
p[j] = lo * d[j] + p[j];
}
int cn = 0;
for(int j = 0; j <= n; j ++)
if(l <= p[j] && p[j] <= r) cn ++;
cout << cn << endl;
}
}
/**
4 2
1
1
1
1
2 1 4
10 5 6
**/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
188 ms |
8404 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
48 ms |
8404 KB |
Output is correct |
2 |
Correct |
47 ms |
8404 KB |
Output is correct |
3 |
Correct |
47 ms |
8404 KB |
Output is correct |
4 |
Correct |
50 ms |
8404 KB |
Output is correct |
5 |
Incorrect |
53 ms |
8404 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
188 ms |
8404 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |