oj.uz

답안 #118238

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
118238 2019-06-18T12:06:54 Z sebinkim Bitaro, who Leaps through Time (JOI19_timeleap) C++14
100 / 100
 693 ms 119280 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair <ll, ll> pll;

struct node{
	ll t, l, r, x1, x2, v;
	node() {}
	node(ll l, ll r) : t(1), l(l), r(r) {}
	node(ll l, ll r, ll x) : t(2), l(l), r(r), x1(x), x2(x), v(0) {}
	
	pll pass(ll x)
	{
		if(t == 1){
			if(l <= x && x <= r) return pll(x, 0);
			else if(x < l) return pll(l, 0);
			else return pll(r, x - r);
		}
		else{
			ll _v = v;
			
			if(x < l) x = l;
			else if(r < x) _v += x - r, x = r;
			if(x > x1) _v += x - x1;
			
			return pll(x2, _v);
		}
	}
	
	node operator + (node n)
	{
		if(t == 1 && n.t == 1){
			if(max(l, n.l) <= min(r, n.r)){
				return node(max(l, n.l), min(r, n.r));
			}
			else if(r < n.l) return node(l, r, n.l);
			else return node(l, r, n.r);
		}
		else if(t == 1 && n.t == 2){
			node ret = n;
			ret.l = l; ret.r = r; 
			
			if(max(l, n.l) <= min(r, n.r)){
				ret.l = max(l, n.l);
				ret.r = min(r, n.r);
			}
			else if(r < n.l){
				ret.x1 = n.l;
				if(n.l > n.x1) ret.v += n.l - n.x1;
			}
			else{
				ret.x1 = n.r;
				if(n.r > n.x1) ret.v += n.r - n.x1;
			}
			
			return ret;
		}
		else if(t == 2 && n.t == 1){
			node ret(l, r, x1);
			
			ret.v = v;
			if(n.l <= x2 && x2 <= n.r) ret.x2 = x2;
			else if(x2 < n.l) ret.x2 = n.l;
			else if(n.r < x2) ret.x2 = n.r, ret.v += x2 - n.r;
			
			return ret;
		}
		else{
			node ret(l, r, x1);
			ll _x2, _v;
			
			tie(_x2, _v) = n.pass(x2);
			ret.x2 = _x2; ret.v = v + _v;
			
			return ret;
		}
	}
};

node T1[1101010], T2[1101010];
ll n, sz;

void update(node *T, ll p)
{
	p = p + sz >> 1;
	for(; p; p>>=1){
		T[p] = T[p << 1] + T[p << 1 | 1];
	}
}

node get_sum(node *T, ll l, ll r)
{
	node sl, sr;
	ll fl = 0, fr = 0;
	
	l += sz; r += sz;
	
	for(; l<r; ){
		if(l & 1){
			if(!fl) sl = T[l], fl = 1;
			else sl = sl + T[l];
		}
		if(~r & 1){
			if(!fr) sr = T[r], fr = 1;
			else sr = T[r] + sr;
		}
		l = l + 1 >> 1;
		r = r - 1 >> 1;
	}
	
	if(l == r){
		if(!fl) sl = T[l], fl = 1;
		else sl = sl + T[l];
	}
	
	if(!fl) return sr;
	else if(!fr) return sl;
	else return sl + sr;
}

int main()
{
	ll q, i, t, l, r, x, y, z, s, e, v;
	
	scanf("%lld%lld", &n, &q);
	
	for(sz=1; sz<=n; sz<<=1);
	
	for(i=0; i<sz; i++){
		T1[sz + i] = node(1, 0, 0);
		T2[sz + i] = node(1, 0, 0);
	}
	
	for(i=1; i<n; i++){
		scanf("%lld%lld", &l, &r);
		T1[sz + i] = node(l - i, r - i - 1);
		T2[sz + n - i] = node(l - n + i, r - n + i - 1);
	}
	
	for(i=sz-1; i>=1; i--){
		T1[i] = T1[i << 1] + T1[i << 1 | 1];
		T2[i] = T2[i << 1] + T2[i << 1 | 1];
	}
	
	for(; q--; ){
		scanf("%lld", &t);
		if(t == 1){
			scanf("%lld%lld%lld", &i, &l, &r);
			T1[sz + i] = node(l - i, r - i - 1);
			T2[sz + n - i] = node(l - n + i, r - n + i - 1);
			update(T1, i); update(T2, n - i);
		}
		else{
			scanf("%lld%lld%lld%lld", &s, &x, &e, &y);
			if(s == e) printf("%lld\n", max(0ll, x - y));
			else if(s < e){
				x -= s; y -= e;
				tie(z, v) = get_sum(T1, s, e - 1).pass(x);
				printf("%lld\n", v + max(0ll, z - y));
			}
			else{
				s = n - s + 1; e = n - e + 1;
				x -= s; y -= e;
				tie(z, v) = get_sum(T2, s, e - 1).pass(x);
				printf("%lld\n", v + max(0ll, z - y));
			}
		}
	}
	
	return 0;
}

Compilation message

timeleap.cpp: In function 'void update(node*, ll)':
timeleap.cpp:87:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  p = p + sz >> 1;
      ~~^~~~
timeleap.cpp: In function 'node get_sum(node*, ll, ll)':
timeleap.cpp:109:9: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   l = l + 1 >> 1;
       ~~^~~
timeleap.cpp:110:9: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
   r = r - 1 >> 1;
       ~~^~~
timeleap.cpp: In function 'int main()':
timeleap.cpp:127:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~
timeleap.cpp:137:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &l, &r);
   ~~~~~^~~~~~~~~~~~~~~~~~~~
timeleap.cpp:148:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", &t);
   ~~~~~^~~~~~~~~~~~
timeleap.cpp:150:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld%lld%lld", &i, &l, &r);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:156:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld%lld%lld%lld", &s, &x, &e, &y);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 4 ms 640 KB Output is correct
12 Correct 3 ms 640 KB Output is correct
13 Correct 3 ms 640 KB Output is correct
14 Correct 6 ms 640 KB Output is correct
15 Correct 3 ms 640 KB Output is correct
16 Correct 3 ms 512 KB Output is correct
17 Correct 3 ms 640 KB Output is correct
18 Correct 3 ms 512 KB Output is correct
19 Correct 3 ms 512 KB Output is correct
20 Correct 3 ms 512 KB Output is correct
21 Correct 3 ms 640 KB Output is correct
22 Correct 3 ms 512 KB Output is correct
23 Correct 4 ms 612 KB Output is correct
24 Correct 3 ms 640 KB Output is correct
25 Correct 3 ms 640 KB Output is correct
26 Correct 3 ms 512 KB Output is correct
27 Correct 3 ms 512 KB Output is correct
28 Correct 3 ms 640 KB Output is correct
29 Correct 5 ms 512 KB Output is correct
30 Correct 3 ms 640 KB Output is correct
31 Correct 3 ms 512 KB Output is correct
32 Correct 4 ms 512 KB Output is correct
33 Correct 4 ms 640 KB Output is correct
34 Correct 3 ms 640 KB Output is correct
35 Correct 3 ms 640 KB Output is correct
36 Correct 3 ms 512 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 512 KB Output is correct
39 Correct 3 ms 512 KB Output is correct
40 Correct 3 ms 512 KB Output is correct
41 Correct 2 ms 384 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 593 ms 103004 KB Output is correct
2 Correct 545 ms 69064 KB Output is correct
3 Correct 560 ms 69256 KB Output is correct
4 Correct 559 ms 68984 KB Output is correct
5 Correct 604 ms 118488 KB Output is correct
6 Correct 615 ms 118448 KB Output is correct
7 Correct 596 ms 118640 KB Output is correct
8 Correct 617 ms 119200 KB Output is correct
9 Correct 530 ms 69120 KB Output is correct
10 Correct 599 ms 118704 KB Output is correct
11 Correct 584 ms 118596 KB Output is correct
12 Correct 625 ms 119052 KB Output is correct
13 Correct 624 ms 119280 KB Output is correct
14 Correct 2 ms 384 KB Output is correct

Subtask #3
66.0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 4 ms 640 KB Output is correct
12 Correct 3 ms 640 KB Output is correct
13 Correct 3 ms 640 KB Output is correct
14 Correct 6 ms 640 KB Output is correct
15 Correct 3 ms 640 KB Output is correct
16 Correct 3 ms 512 KB Output is correct
17 Correct 3 ms 640 KB Output is correct
18 Correct 3 ms 512 KB Output is correct
19 Correct 3 ms 512 KB Output is correct
20 Correct 3 ms 512 KB Output is correct
21 Correct 3 ms 640 KB Output is correct
22 Correct 3 ms 512 KB Output is correct
23 Correct 4 ms 612 KB Output is correct
24 Correct 3 ms 640 KB Output is correct
25 Correct 3 ms 640 KB Output is correct
26 Correct 3 ms 512 KB Output is correct
27 Correct 3 ms 512 KB Output is correct
28 Correct 3 ms 640 KB Output is correct
29 Correct 5 ms 512 KB Output is correct
30 Correct 3 ms 640 KB Output is correct
31 Correct 3 ms 512 KB Output is correct
32 Correct 4 ms 512 KB Output is correct
33 Correct 4 ms 640 KB Output is correct
34 Correct 3 ms 640 KB Output is correct
35 Correct 3 ms 640 KB Output is correct
36 Correct 3 ms 512 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 512 KB Output is correct
39 Correct 3 ms 512 KB Output is correct
40 Correct 3 ms 512 KB Output is correct
41 Correct 2 ms 384 KB Output is correct
42 Correct 593 ms 103004 KB Output is correct
43 Correct 545 ms 69064 KB Output is correct
44 Correct 560 ms 69256 KB Output is correct
45 Correct 559 ms 68984 KB Output is correct
46 Correct 604 ms 118488 KB Output is correct
47 Correct 615 ms 118448 KB Output is correct
48 Correct 596 ms 118640 KB Output is correct
49 Correct 617 ms 119200 KB Output is correct
50 Correct 530 ms 69120 KB Output is correct
51 Correct 599 ms 118704 KB Output is correct
52 Correct 584 ms 118596 KB Output is correct
53 Correct 625 ms 119052 KB Output is correct
54 Correct 624 ms 119280 KB Output is correct
55 Correct 2 ms 384 KB Output is correct
56 Correct 630 ms 115356 KB Output is correct
57 Correct 587 ms 65820 KB Output is correct
58 Correct 649 ms 115704 KB Output is correct
59 Correct 657 ms 115832 KB Output is correct
60 Correct 605 ms 66132 KB Output is correct
61 Correct 653 ms 115932 KB Output is correct
62 Correct 674 ms 115968 KB Output is correct
63 Correct 659 ms 115768 KB Output is correct
64 Correct 649 ms 115924 KB Output is correct
65 Correct 651 ms 115576 KB Output is correct
66 Correct 675 ms 115780 KB Output is correct
67 Correct 652 ms 115928 KB Output is correct
68 Correct 637 ms 114912 KB Output is correct
69 Correct 639 ms 115976 KB Output is correct
70 Correct 570 ms 66056 KB Output is correct
71 Correct 606 ms 65256 KB Output is correct
72 Correct 638 ms 114832 KB Output is correct
73 Correct 656 ms 115320 KB Output is correct
74 Correct 669 ms 115480 KB Output is correct
75 Correct 687 ms 115436 KB Output is correct
76 Correct 693 ms 116084 KB Output is correct
77 Correct 2 ms 384 KB Output is correct