Submission #1085751

# Submission time Handle Problem Language Result Execution time Memory
1085751 2024-09-08T16:02:02 Z Sunbae Divide and conquer (IZhO14_divide) C++17
17 / 100
1000 ms 600 KB
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const int N = 1e5 + 5;
array<int,3> a[N];
ll qs[N], cp[N<<1], QS[N];
int bit[N<<1], m = 0, n;
int pos(int x){ return upper_bound(cp, cp+m, x) - cp;}
void upd(int i, int val){ for(; i<=m; i+=i&-i) bit[i] = min(bit[i], val);}
int qry(int i){ int res = n+1; for(; i; i-=i&-i) res = min(res, bit[i]); return res;}
signed main(){
	scanf("%d", &n);
	for(int i = 1, x, y, z; i<=n; ++i){
		scanf("%d %d %d", &x, &y, &z);
		a[i][0] = x; a[i][1] = y; a[i][2] = z;
	}
	for(int i = 1; i<=n; ++i){
		qs[i] = qs[i-1] + a[i][2];
		QS[i] = QS[i-1] + a[i][1];
		cp[m++] = qs[i-1] - a[i][0];
	}
	sort(cp, cp+m); m = unique(cp, cp+m) - cp;
	ll mx = 0;
	fill(bit, bit+m+1, n+1);
	for(int i = 1; i<=n; ++i){
		upd(pos(qs[i-1] - a[i][0]), i);
		int j = qry(pos(qs[i] - a[i][0]));
		if(j <= n) mx = max(mx, QS[i] - QS[j-1]);
	}
	printf("%lld", mx);
}

Compilation message

divide.cpp: In function 'int main()':
divide.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
divide.cpp:14:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   scanf("%d %d %d", &x, &y, &z);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 448 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 448 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Execution timed out 1097 ms 348 KB Time limit exceeded
19 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 448 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Execution timed out 1097 ms 348 KB Time limit exceeded
19 Halted 0 ms 0 KB -