oj.uz

답안 #1092574

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1092574 2024-09-24T12:41:05 Z Sunbae Growing Trees (BOI11_grow) C++17
100 / 100
 89 ms 3664 KB 
#include <bits/stdc++.h>
#define z exit(0)
typedef long long ll;
using namespace std;
const int N = 1e5 + 5;
ll bit[N], a[N]; 
int n;
void upd(int i, ll v){ for(; i<=n; i+=i&-i) bit[i] += v;}
int qry(int i){ ll r = 0; for(; i; i-=i&-i) r += bit[i]; return r;}
void UPD(int l, int r){ upd(l, +1); upd(r+1, -1);}
ll A(int i){ return a[i] + qry(i);}
bool V(int i){ return 1 <= i && i <= n;}
signed main(){
	int q; scanf("%d %d", &n, &q);
	for(int i = 1; i<=n; ++i) scanf("%lld", a+i);
	sort(a+1, a+1+n);
	for(int i = 0, c, h, l, r, L, R; i<q; ++i){
		char op; scanf(" %c", &op);
		if(op == 'F'){
			scanf("%d %d", &c, &h);
			int low = 1, high = n, st = n+1, ed = -1;
			while(low <= high){
				int mid = low + ((high-low)>>1);
				if(A(mid) >= h) high = mid-1, st = mid;
				else low = mid+1;
			}
			if(st > n) continue;
			ed = min(n, st+c-1); c = ed-st+1;
			ll val = A(ed);
			low = 1; high = ed; l = n+1; r = -1;
			while(low <= high){
				int mid = low + ((high-low)>>1);
				if(A(mid) < val) low = mid+1;
				else if(A(mid) == val) high = mid-1, l = mid;
			}
			low = ed; high = n;
			while(low <= high){
				int mid = low + ((high-low)>>1);
				if(A(mid) > val) high = mid-1;
				else if(A(mid) == val) low = mid+1, r = mid;
			}
			if(l > r) continue;
			L = st; R = l-1;
			if(V(L) && V(R) && L <= R) UPD(L, R);
			int rem = c-l+st;
			L = r - rem + 1; R = r;
			if(V(L) && V(R) && L <= R) UPD(L, R);
		}else{
			scanf("%d %d", &l, &r);
			int low = 1, high = n; L = n+1; R = -1;
			while(low <= high){
				int mid = low + ((high-low)>>1);
				if(A(mid) >= l) high = mid-1, L = mid;
				else low = mid+1;
			}
			low = 1; high = n;
			while(low <= high){
				int mid = low + ((high-low)>>1);
				if(A(mid) <= r) low = mid+1, R = mid;
				else high = mid-1;
			}
			if(L <= R) printf("%d\n", R-L+1);
			else puts("0");
		}
	}
}

Compilation message

grow.cpp: In function 'int main()':
grow.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  int q; scanf("%d %d", &n, &q);
      |         ~~~~~^~~~~~~~~~~~~~~~~
grow.cpp:15:33: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |  for(int i = 1; i<=n; ++i) scanf("%lld", a+i);
      |                            ~~~~~^~~~~~~~~~~~~
grow.cpp:18:17: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |   char op; scanf(" %c", &op);
      |            ~~~~~^~~~~~~~~~~~
grow.cpp:20:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |    scanf("%d %d", &c, &h);
      |    ~~~~~^~~~~~~~~~~~~~~~~
grow.cpp:49:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |    scanf("%d %d", &l, &r);
      |    ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 2744 KB Output is correct
2 Correct 86 ms 3368 KB Output is correct
3 Correct 46 ms 3408 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 36 ms 1396 KB Output is correct
6 Correct 40 ms 1576 KB Output is correct
7 Correct 3 ms 604 KB Output is correct
8 Correct 20 ms 1140 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 852 KB Output is correct
2 Correct 43 ms 1876 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 26 ms 1356 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 900 KB Output is correct
2 Correct 44 ms 1820 KB Output is correct
3 Correct 5 ms 608 KB Output is correct
4 Correct 42 ms 1740 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 59 ms 1624 KB Output is correct
2 Correct 80 ms 2904 KB Output is correct
3 Correct 13 ms 1128 KB Output is correct
4 Correct 34 ms 2824 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 67 ms 1656 KB Output is correct
2 Correct 81 ms 3072 KB Output is correct
3 Correct 42 ms 3120 KB Output is correct
4 Correct 13 ms 1112 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 53 ms 1876 KB Output is correct
2 Correct 58 ms 3152 KB Output is correct
3 Correct 46 ms 3196 KB Output is correct
4 Correct 14 ms 1112 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 1876 KB Output is correct
2 Correct 83 ms 2900 KB Output is correct
3 Correct 22 ms 2652 KB Output is correct
4 Correct 44 ms 2900 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 71 ms 1924 KB Output is correct
2 Correct 85 ms 3408 KB Output is correct
3 Correct 83 ms 3664 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 87 ms 2412 KB Output is correct