oj.uz

Submission #917983

# Submission time Handle Problem Language Result Execution time Memory
917983 2024-01-29T09:18:40 Z waldi Crossing (JOI21_crossing) C++17
100 / 100
 333 ms 34668 KB 
#include <bits/stdc++.h>
#define FOR(i,p,k) for(int i=(p);i<=(k);++i)
#define REP(i,n) FOR(i,0,(n)-1)
#define ssize(x) (int(x.size()))
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef pair<int, ll> pil;
ll mod = 998244353069ll;
ll pier = 71ll;

ll literka(char c){
	return c=='I' ? 0ll : (c=='J' ? 1ll : 2ll);
}

int main(){
	int n;
	scanf("%d", &n);
	vector zbior(3, vector(n+1, 0ll));
	REP(ktory, 3){
		scanf("\n");
		FOR(i, 1, n){
			char c;
			scanf("%c", &c);
			zbior[ktory][i] = literka(c);
		}
	}
	
	vector<ll> pot(n+1, 0ll);
	pot[1] = 1ll;
	FOR(i, 2, n) pot[i] = (pot[i-1]*pier)%mod;
	vector<ll> pref(n+1, 0ll);
	FOR(i, 1, n) pref[i] = (pref[i-1]+pot[i])%mod;
	auto hasz_prz = [&](int l, int p, ll lit){
		return (lit*(pref[p]-pref[l-1]+mod))%mod;
	};
	
	auto ksor = [&](vector<ll> a, vector<ll> b){
		vector<ll> ret(n+1);
		FOR(i, 1, n) ret[i] = ((a[i]+b[i])<<1)%3;
		return ret;
	};
	auto hasz_vec = [&](vector<ll> vec){
		ll ret = 0ll;
		FOR(i, 1, n) ret = (ret + pot[i]*vec[i])%mod;
		return ret;
	};
	
	zbior.emplace_back(ksor(zbior[0], zbior[1]));
	zbior.emplace_back(ksor(zbior[1], zbior[2]));
	zbior.emplace_back(ksor(zbior[0], zbior[2]));
	
	zbior.emplace_back(ksor(zbior[3], zbior[4]));
	zbior.emplace_back(ksor(zbior[4], zbior[5]));
	zbior.emplace_back(ksor(zbior[3], zbior[5]));
	
	vector<ll> zbior_haszy(ssize(zbior));
	REP(i, ssize(zbior)) zbior_haszy[i] = hasz_vec(zbior[i]);
	
	int q;
	scanf("%d\n", &q);
	set<pil> secik = {{n+1, 69ll}, {n+2, 69ll}};
	ll hasz = 0ll;
	FOR(i, 1, n){
		char c;
		scanf("%c", &c);
		ll t = literka(c);
		hasz = (hasz + pot[i]*t)%mod;
		secik.emplace(i, t);
	}
	
	FOR(i, 0, q){
		if(i){
			int l, p; char c;
			scanf("%d%d %c", &l, &p, &c);
			ll t = literka(c);
			
			auto podziel = [&](int gdzie){
				auto it = secik.lower_bound({gdzie, 0ll});
				if(it->fi == gdzie) return;
				secik.emplace(gdzie, prev(it)->se);
			};
			podziel(l), podziel(p+1);
			
			for(auto it = secik.lower_bound({l, 0ll}); it->fi <= p; it = secik.erase(it)){
				hasz = (hasz - hasz_prz(it->fi, next(it)->fi-1, it->se) + mod)%mod;
			}
			secik.emplace(l, t);
			hasz = (hasz + hasz_prz(l, p, t))%mod;
		}
		bool czy = 0;
		for(ll &x : zbior_haszy) if(x == hasz){czy = 1; break;}
		printf(czy ? "Yes\n" : "No\n");
	}
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
Main.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |   scanf("\n");
      |   ~~~~~^~~~~~
Main.cpp:26:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |    scanf("%c", &c);
      |    ~~~~~^~~~~~~~~~
Main.cpp:63:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |  scanf("%d\n", &q);
      |  ~~~~~^~~~~~~~~~~~
Main.cpp:68:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |   scanf("%c", &c);
      |   ~~~~~^~~~~~~~~~
Main.cpp:77:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   77 |    scanf("%d%d %c", &l, &p, &c);
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 2208 KB Output is correct
2 Correct 123 ms 2452 KB Output is correct
3 Correct 79 ms 2388 KB Output is correct
4 Correct 97 ms 2372 KB Output is correct
5 Correct 98 ms 2256 KB Output is correct
6 Correct 98 ms 2216 KB Output is correct
7 Correct 101 ms 2668 KB Output is correct
8 Correct 103 ms 2540 KB Output is correct
9 Correct 104 ms 2536 KB Output is correct
10 Correct 102 ms 2384 KB Output is correct
11 Correct 107 ms 2388 KB Output is correct
12 Correct 112 ms 2388 KB Output is correct
13 Correct 104 ms 2388 KB Output is correct
14 Correct 109 ms 2768 KB Output is correct
15 Correct 111 ms 2372 KB Output is correct
16 Correct 102 ms 2388 KB Output is correct
17 Correct 105 ms 2512 KB Output is correct
18 Correct 73 ms 2388 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 2208 KB Output is correct
2 Correct 123 ms 2452 KB Output is correct
3 Correct 79 ms 2388 KB Output is correct
4 Correct 97 ms 2372 KB Output is correct
5 Correct 98 ms 2256 KB Output is correct
6 Correct 98 ms 2216 KB Output is correct
7 Correct 101 ms 2668 KB Output is correct
8 Correct 103 ms 2540 KB Output is correct
9 Correct 104 ms 2536 KB Output is correct
10 Correct 102 ms 2384 KB Output is correct
11 Correct 107 ms 2388 KB Output is correct
12 Correct 112 ms 2388 KB Output is correct
13 Correct 104 ms 2388 KB Output is correct
14 Correct 109 ms 2768 KB Output is correct
15 Correct 111 ms 2372 KB Output is correct
16 Correct 102 ms 2388 KB Output is correct
17 Correct 105 ms 2512 KB Output is correct
18 Correct 73 ms 2388 KB Output is correct
19 Correct 226 ms 34444 KB Output is correct
20 Correct 208 ms 34332 KB Output is correct
21 Correct 310 ms 32404 KB Output is correct
22 Correct 245 ms 29312 KB Output is correct
23 Correct 177 ms 4680 KB Output is correct
24 Correct 160 ms 4692 KB Output is correct
25 Correct 315 ms 34360 KB Output is correct
26 Correct 333 ms 34292 KB Output is correct
27 Correct 256 ms 34340 KB Output is correct
28 Correct 249 ms 34400 KB Output is correct
29 Correct 258 ms 33532 KB Output is correct
30 Correct 143 ms 4892 KB Output is correct
31 Correct 247 ms 34296 KB Output is correct
32 Correct 271 ms 31428 KB Output is correct
33 Correct 156 ms 4692 KB Output is correct
34 Correct 268 ms 34300 KB Output is correct
35 Correct 247 ms 26300 KB Output is correct
36 Correct 157 ms 4824 KB Output is correct
37 Correct 157 ms 4736 KB Output is correct
38 Correct 170 ms 34100 KB Output is correct
39 Correct 218 ms 34352 KB Output is correct
40 Correct 304 ms 23632 KB Output is correct
41 Correct 196 ms 34608 KB Output is correct
42 Correct 142 ms 33840 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 2208 KB Output is correct
2 Correct 123 ms 2452 KB Output is correct
3 Correct 79 ms 2388 KB Output is correct
4 Correct 97 ms 2372 KB Output is correct
5 Correct 98 ms 2256 KB Output is correct
6 Correct 98 ms 2216 KB Output is correct
7 Correct 101 ms 2668 KB Output is correct
8 Correct 103 ms 2540 KB Output is correct
9 Correct 104 ms 2536 KB Output is correct
10 Correct 102 ms 2384 KB Output is correct
11 Correct 107 ms 2388 KB Output is correct
12 Correct 112 ms 2388 KB Output is correct
13 Correct 104 ms 2388 KB Output is correct
14 Correct 109 ms 2768 KB Output is correct
15 Correct 111 ms 2372 KB Output is correct
16 Correct 102 ms 2388 KB Output is correct
17 Correct 105 ms 2512 KB Output is correct
18 Correct 73 ms 2388 KB Output is correct
19 Correct 99 ms 2372 KB Output is correct
20 Correct 79 ms 2388 KB Output is correct
21 Correct 103 ms 2384 KB Output is correct
22 Correct 92 ms 2256 KB Output is correct
23 Correct 102 ms 2384 KB Output is correct
24 Correct 98 ms 2388 KB Output is correct
25 Correct 103 ms 2408 KB Output is correct
26 Correct 101 ms 2384 KB Output is correct
27 Correct 104 ms 2500 KB Output is correct
28 Correct 93 ms 2128 KB Output is correct
29 Correct 114 ms 2428 KB Output is correct
30 Correct 96 ms 2388 KB Output is correct
31 Correct 103 ms 2424 KB Output is correct
32 Correct 101 ms 2388 KB Output is correct
33 Correct 108 ms 2416 KB Output is correct
34 Correct 100 ms 2388 KB Output is correct
35 Correct 102 ms 2388 KB Output is correct
36 Correct 112 ms 2528 KB Output is correct
37 Correct 102 ms 2528 KB Output is correct
38 Correct 104 ms 2388 KB Output is correct
39 Correct 102 ms 2544 KB Output is correct
40 Correct 112 ms 2352 KB Output is correct
41 Correct 102 ms 2352 KB Output is correct
42 Correct 104 ms 2404 KB Output is correct
43 Correct 114 ms 2388 KB Output is correct
44 Correct 107 ms 2432 KB Output is correct

Subtask #4
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 2208 KB Output is correct
2 Correct 123 ms 2452 KB Output is correct
3 Correct 79 ms 2388 KB Output is correct
4 Correct 97 ms 2372 KB Output is correct
5 Correct 98 ms 2256 KB Output is correct
6 Correct 98 ms 2216 KB Output is correct
7 Correct 101 ms 2668 KB Output is correct
8 Correct 103 ms 2540 KB Output is correct
9 Correct 104 ms 2536 KB Output is correct
10 Correct 102 ms 2384 KB Output is correct
11 Correct 107 ms 2388 KB Output is correct
12 Correct 112 ms 2388 KB Output is correct
13 Correct 104 ms 2388 KB Output is correct
14 Correct 109 ms 2768 KB Output is correct
15 Correct 111 ms 2372 KB Output is correct
16 Correct 102 ms 2388 KB Output is correct
17 Correct 105 ms 2512 KB Output is correct
18 Correct 73 ms 2388 KB Output is correct
19 Correct 226 ms 34444 KB Output is correct
20 Correct 208 ms 34332 KB Output is correct
21 Correct 310 ms 32404 KB Output is correct
22 Correct 245 ms 29312 KB Output is correct
23 Correct 177 ms 4680 KB Output is correct
24 Correct 160 ms 4692 KB Output is correct
25 Correct 315 ms 34360 KB Output is correct
26 Correct 333 ms 34292 KB Output is correct
27 Correct 256 ms 34340 KB Output is correct
28 Correct 249 ms 34400 KB Output is correct
29 Correct 258 ms 33532 KB Output is correct
30 Correct 143 ms 4892 KB Output is correct
31 Correct 247 ms 34296 KB Output is correct
32 Correct 271 ms 31428 KB Output is correct
33 Correct 156 ms 4692 KB Output is correct
34 Correct 268 ms 34300 KB Output is correct
35 Correct 247 ms 26300 KB Output is correct
36 Correct 157 ms 4824 KB Output is correct
37 Correct 157 ms 4736 KB Output is correct
38 Correct 170 ms 34100 KB Output is correct
39 Correct 218 ms 34352 KB Output is correct
40 Correct 304 ms 23632 KB Output is correct
41 Correct 196 ms 34608 KB Output is correct
42 Correct 142 ms 33840 KB Output is correct
43 Correct 99 ms 2372 KB Output is correct
44 Correct 79 ms 2388 KB Output is correct
45 Correct 103 ms 2384 KB Output is correct
46 Correct 92 ms 2256 KB Output is correct
47 Correct 102 ms 2384 KB Output is correct
48 Correct 98 ms 2388 KB Output is correct
49 Correct 103 ms 2408 KB Output is correct
50 Correct 101 ms 2384 KB Output is correct
51 Correct 104 ms 2500 KB Output is correct
52 Correct 93 ms 2128 KB Output is correct
53 Correct 114 ms 2428 KB Output is correct
54 Correct 96 ms 2388 KB Output is correct
55 Correct 103 ms 2424 KB Output is correct
56 Correct 101 ms 2388 KB Output is correct
57 Correct 108 ms 2416 KB Output is correct
58 Correct 100 ms 2388 KB Output is correct
59 Correct 102 ms 2388 KB Output is correct
60 Correct 112 ms 2528 KB Output is correct
61 Correct 102 ms 2528 KB Output is correct
62 Correct 104 ms 2388 KB Output is correct
63 Correct 102 ms 2544 KB Output is correct
64 Correct 112 ms 2352 KB Output is correct
65 Correct 102 ms 2352 KB Output is correct
66 Correct 104 ms 2404 KB Output is correct
67 Correct 114 ms 2388 KB Output is correct
68 Correct 107 ms 2432 KB Output is correct
69 Correct 192 ms 29088 KB Output is correct
70 Correct 200 ms 34336 KB Output is correct
71 Correct 164 ms 4792 KB Output is correct
72 Correct 158 ms 4692 KB Output is correct
73 Correct 157 ms 4944 KB Output is correct
74 Correct 277 ms 28844 KB Output is correct
75 Correct 157 ms 4844 KB Output is correct
76 Correct 310 ms 34484 KB Output is correct
77 Correct 268 ms 29232 KB Output is correct
78 Correct 156 ms 4796 KB Output is correct
79 Correct 157 ms 4688 KB Output is correct
80 Correct 235 ms 25080 KB Output is correct
81 Correct 162 ms 4772 KB Output is correct
82 Correct 290 ms 34456 KB Output is correct
83 Correct 273 ms 32400 KB Output is correct
84 Correct 156 ms 4692 KB Output is correct
85 Correct 172 ms 4812 KB Output is correct
86 Correct 212 ms 26900 KB Output is correct
87 Correct 271 ms 34220 KB Output is correct
88 Correct 155 ms 4784 KB Output is correct
89 Correct 278 ms 30440 KB Output is correct
90 Correct 270 ms 34356 KB Output is correct
91 Correct 147 ms 4768 KB Output is correct
92 Correct 275 ms 26300 KB Output is correct
93 Correct 161 ms 4692 KB Output is correct
94 Correct 158 ms 4688 KB Output is correct
95 Correct 167 ms 4692 KB Output is correct
96 Correct 182 ms 34260 KB Output is correct
97 Correct 269 ms 34344 KB Output is correct
98 Correct 256 ms 23628 KB Output is correct
99 Correct 213 ms 34668 KB Output is correct
100 Correct 152 ms 33692 KB Output is correct