oj.uz

Submission #102096

# Submission time Handle Problem Language Result Execution time Memory
102096 2019-03-22T09:30:04 Z gs14004 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
100 / 100
 1729 ms 14712 KB 
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using pi = pair<lint, lint>;
const int MAXN = 600005;
const int B = 66;

int n, q;
pi a[MAXN];

struct bucket{
	lint ints, inte;
	int destination;
	lint offset;
	bool found;
	void remake(int s, int e){
		s = max(s, 1); e = min(e, 2 * n - 1);
		ints = -1e9, inte = 2e9;
		offset = 0;
		found = 0;
		for(int i=s; i<=e; i++){
			if(max(ints, a[i].first) <= min(inte, a[i].second)){
				inte = min(inte, a[i].second);
				ints = max(ints, a[i].first);
			}
			else{
				found = 1; 
				if(a[i].first > inte) ints = inte;
				if(a[i].second < ints) inte = ints;
				int x = inte;
				for(int j=i; j<=e; j++){
					if(x < a[j].first) x = a[j].first;
					if(x > a[j].second){
						offset += x - a[j].second;
						x = a[j].second;
					}
				}
				destination = x;
				break;
			}
		}
	}
	pi process(int x){
		if(!found){
			if(x > inte) return pi(x - inte, inte);
			else return pi(0ll, max(x * 1ll, ints));
		}
		lint ret = offset + max(x - ints, 0ll);
		return pi(ret, 1ll * destination);
	}
}bkt[10000];

pi solve(int s, int e, int x){
	if(e - s <= 3*B){
		lint ans = 0;
		for(int i=s; i<=e; i++){
			if(x < a[i].first) x = a[i].first;
			if(x > a[i].second){
				ans += x - a[i].second;
				x = a[i].second;
			}
		}
		return pi(ans, x);
	}
	else{
		auto ret1 = solve(s, (s/B + 1) * B - 1, x);
		lint ans = ret1.first;
		x = ret1.second;
		for(int i=s/B+1; i<e/B; i++){
			auto nxt = bkt[i].process(x);
			ans += nxt.first;
			x = nxt.second;
		}
		auto ret2 = solve((e / B) * B, e, x);
		ans += ret2.first;
		x = ret2.second;
		return pi(ans, x);
	}
}

int main(){
	scanf("%d %d",&n,&q);
	for(int i=1; i<n; i++){
		scanf("%lld %lld",&a[i].first,&a[i].second);
		a[2*n-i] = a[i];
	}
	a[n] = pi(6, 9);
	for(int i=1; i<=2*n-1; i++){
		a[i].first -= i;
		a[i].second -= i + 1;
	}
	for(int i=0; i<=2*n-1; i+=B){
		bkt[i/B].remake(i, i + B - 1);
	}
	for(int i=0; i<q; i++){
		int t; scanf("%d",&t);
		if(t == 1){
			int p, s, e; scanf("%d %d %d",&p,&s,&e);
			a[p] = pi(s - p, e - p - 1);
			a[2*n-p] = pi(s - 2 * n + p, e - 2 * n + p - 1);
			{
				int key = p / B;
				bkt[key].remake(key * B, key * B + B - 1);
			}
			{
				int key = (2 * n - p) / B;
				bkt[key].remake(key * B, key * B + B - 1);
			}
		}
		else{
			int p, q, r, s; scanf("%d %d %d %d",&p,&q,&r,&s);
			lint ans = 0;
			if(p < r){
				q -= p;
				s -= r;
				auto dap = solve(p, r - 1, q);
				ans = dap.first + max(dap.second - s, 0ll);
			}
			else if(p > r){
				q -= 2 * n - p + 1;
				s -= 2 * n - r + 1;
				auto dap =  solve(2 * n - p + 1, 2 * n - r, q);
				ans = dap.first + max(dap.second - s, 0ll);
			}
			else{
				ans = max(q - s, 0);
			}
			printf("%lld\n", ans);
		}
	}
}

Compilation message

timeleap.cpp: In function 'int main()':
timeleap.cpp:82:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&q);
  ~~~~~^~~~~~~~~~~~~~~
timeleap.cpp:84:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&a[i].first,&a[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:96:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int t; scanf("%d",&t);
          ~~~~~^~~~~~~~~
timeleap.cpp:98:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int p, s, e; scanf("%d %d %d",&p,&s,&e);
                 ~~~~~^~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:111:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int p, q, r, s; scanf("%d %d %d %d",&p,&q,&r,&s);
                    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 5 ms 408 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 4 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 4 ms 384 KB Output is correct
31 Correct 4 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 4 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 4 ms 384 KB Output is correct
38 Correct 4 ms 384 KB Output is correct
39 Correct 3 ms 380 KB Output is correct
40 Correct 4 ms 384 KB Output is correct
41 Correct 3 ms 384 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1624 ms 13480 KB Output is correct
2 Correct 1491 ms 13176 KB Output is correct
3 Correct 1351 ms 13132 KB Output is correct
4 Correct 1298 ms 12744 KB Output is correct
5 Correct 1637 ms 13460 KB Output is correct
6 Correct 1688 ms 13236 KB Output is correct
7 Correct 1653 ms 13840 KB Output is correct
8 Correct 1667 ms 14616 KB Output is correct
9 Correct 1512 ms 13436 KB Output is correct
10 Correct 1560 ms 14132 KB Output is correct
11 Correct 1677 ms 13888 KB Output is correct
12 Correct 1569 ms 14712 KB Output is correct
13 Correct 1729 ms 14712 KB Output is correct
14 Correct 2 ms 256 KB Output is correct

Subtask #3
66.0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 5 ms 408 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 4 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 4 ms 384 KB Output is correct
31 Correct 4 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 4 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 4 ms 384 KB Output is correct
38 Correct 4 ms 384 KB Output is correct
39 Correct 3 ms 380 KB Output is correct
40 Correct 4 ms 384 KB Output is correct
41 Correct 3 ms 384 KB Output is correct
42 Correct 1624 ms 13480 KB Output is correct
43 Correct 1491 ms 13176 KB Output is correct
44 Correct 1351 ms 13132 KB Output is correct
45 Correct 1298 ms 12744 KB Output is correct
46 Correct 1637 ms 13460 KB Output is correct
47 Correct 1688 ms 13236 KB Output is correct
48 Correct 1653 ms 13840 KB Output is correct
49 Correct 1667 ms 14616 KB Output is correct
50 Correct 1512 ms 13436 KB Output is correct
51 Correct 1560 ms 14132 KB Output is correct
52 Correct 1677 ms 13888 KB Output is correct
53 Correct 1569 ms 14712 KB Output is correct
54 Correct 1729 ms 14712 KB Output is correct
55 Correct 2 ms 256 KB Output is correct
56 Correct 1218 ms 11768 KB Output is correct
57 Correct 1141 ms 11128 KB Output is correct
58 Correct 1237 ms 11956 KB Output is correct
59 Correct 1167 ms 12072 KB Output is correct
60 Correct 1130 ms 11200 KB Output is correct
61 Correct 1287 ms 12292 KB Output is correct
62 Correct 1313 ms 12268 KB Output is correct
63 Correct 1275 ms 12304 KB Output is correct
64 Correct 1316 ms 12224 KB Output is correct
65 Correct 1281 ms 11716 KB Output is correct
66 Correct 1161 ms 11892 KB Output is correct
67 Correct 1014 ms 12256 KB Output is correct
68 Correct 937 ms 11608 KB Output is correct
69 Correct 1061 ms 12420 KB Output is correct
70 Correct 1177 ms 11392 KB Output is correct
71 Correct 1182 ms 10924 KB Output is correct
72 Correct 1171 ms 11236 KB Output is correct
73 Correct 1207 ms 12280 KB Output is correct
74 Correct 1098 ms 12288 KB Output is correct
75 Correct 1139 ms 12356 KB Output is correct
76 Correct 1162 ms 12508 KB Output is correct
77 Correct 2 ms 256 KB Output is correct