/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;
int n, q;
ll D, C[N], b[N];
void solve(){
cin >> n >> D;
for(int i = 1; i <= n; ++i) cin >> C[i];
cin >> q;
for(int i = 1; i <= q; ++i){
int l, r; cin >> l >> r;
int ans = 0;
b[r] = C[r];
for(int x = r - 1; x >= l; --x){
if(C[x] <= b[x + 1]){
b[x] = C[x];
}else{
b[x] = C[x] % D;
if(b[x] > b[x + 1]){
ans = -1;
break;
}
ans += C[x] / D - (b[x + 1] - b[x]) / D;
b[x] += (b[x + 1] - b[x]) / D * D;
}
}
// for(int j = l; j <= r; ++j) cout << b[j] << ' ';
cout << ans << '\n';
}
}
int main(){
cin.tie(0); ios::sync_with_stdio(0);
int tt = 1, aa;
// freopen("in.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
while(tt--){
solve();
en;
}
cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
return 0;
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:44:15: warning: unused variable 'aa' [-Wunused-variable]
44 | int tt = 1, aa;
| ^~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
2049 ms |
5868 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1227 ms |
6388 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
2065 ms |
5108 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |