oj.uz

Submission #37665

# Submission time Handle Problem Language Result Execution time Memory
37665 2017-12-26T17:26:24 Z szawinis Lightning Conductor (POI11_pio) C++14
100 / 100
 399 ms 5932 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 5e5+1;

int n, h[N], res[N];

void solve(int l, int r, int optL, int optR) {
	if(l > r) return;
	int mid = l+r >> 1, opt = optL;
	for(int i = optL; i <= min(optR, mid); i++)
		if(h[i] + sqrt(mid - i) > h[opt] + sqrt(mid - opt))
			opt = i;
	res[mid] = max(h[opt] + (int) ceil(sqrt(mid - opt)) - h[mid], res[mid]);
	solve(l, mid-1, optL, opt);
	solve(mid+1, r, opt, optR);
}

int main() {
	scanf("%d", &n);
	for(int i = 0; i < n; i++) scanf("%d", &h[i]);
	solve(0, n-1, 0, n-1);
	reverse(h, h+n);
	reverse(res, res+n);
	solve(0, n-1, 0, n-1);
	reverse(h, h+n);
	reverse(res, res+n);
	for(int i = 0; i < n; i++) printf("%d\n", res[i]);
}

Compilation message

pio.cpp: In function 'void solve(int, int, int, int)':
pio.cpp:10:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid = l+r >> 1, opt = optL;
             ^
pio.cpp: In function 'int main()':
pio.cpp:20:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
pio.cpp:21:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 0; i < n; i++) scanf("%d", &h[i]);
                                               ^

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 5932 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 5932 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 5932 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 5932 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 5932 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 5932 KB Output is correct
2 Correct 39 ms 5932 KB Output is correct
3 Correct 43 ms 5932 KB Output is correct

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 5932 KB Output is correct
2 Correct 66 ms 5932 KB Output is correct
3 Correct 69 ms 5932 KB Output is correct

Subtask #8
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 5932 KB Output is correct
2 Correct 156 ms 5932 KB Output is correct
3 Correct 153 ms 5932 KB Output is correct

Subtask #9
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 276 ms 5932 KB Output is correct
2 Correct 249 ms 5932 KB Output is correct
3 Correct 233 ms 5932 KB Output is correct

Subtask #10
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 363 ms 5932 KB Output is correct
2 Correct 363 ms 5932 KB Output is correct
3 Correct 326 ms 5932 KB Output is correct

Subtask #11
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 399 ms 5932 KB Output is correct
2 Correct 363 ms 5932 KB Output is correct
3 Correct 333 ms 5932 KB Output is correct