oj.uz

Submission #815086

# Submission time Handle Problem Language Result Execution time Memory
815086 2023-08-08T12:14:56 Z waldi Misspelling (JOI22_misspelling) C++17
100 / 100
 2824 ms 91596 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 pii pair<int, int>
#define fi first
#define se second
#define mod 1000000007
#define A 26
typedef long long ll;
using namespace std;

struct modular{
	int a;
	modular(int x = 0){a = x;}
	modular operator+(modular t){return {(a+t.a)%mod};}
	modular operator-(modular t){return {(a-t.a+mod)%mod};}
	void operator+=(modular t){a = (a+t.a)%mod;}
};

int main(){
	int n, m;
	scanf("%d%d", &n, &m);
	vector<set<pii>> s(2);
	while(m--){
		int a, b;
		scanf("%d%d", &a, &b);
		if(a < b) s[0].emplace(a, b);
		else s[1].emplace(b, a);
	}
	
	vector<vector<modular>> dp(n+1, vector<modular>(A, 0));
	REP(lit, A) dp[1][lit] = 1;
	FOR(pref, 1, n-1) REP(lit, A){
		modular t = dp[pref][lit];
		
		auto f = [&](int x){
			while(s[x].size()){
				auto it = s[x].lower_bound({pref+1, 0});
				if(it == s[x].begin()) return 0;
				it = prev(it);
				if(it->se > pref) return it->fi;
				s[x].erase(it);
			}
			return 0;
		};
		int dol = f(1);
		int gora = f(0);
		
		REP(nowa, A){
			int ogr = 0;
			if(nowa < lit) ogr = dol;
			if(nowa > lit) ogr = gora;
			dp[pref+1][nowa] += t-dp[ogr][lit];
		}
	}
	modular wyn = 0;
	REP(lit, A) wyn += dp[n][lit];
	printf("%d", wyn.a);
}

Compilation message

misspelling.cpp: In function 'int main()':
misspelling.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
misspelling.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   scanf("%d%d", &a, &b);
      |   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 4 ms 724 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 2731 ms 90264 KB Output is correct
6 Correct 2824 ms 91468 KB Output is correct
7 Correct 2553 ms 91468 KB Output is correct
8 Correct 2816 ms 91536 KB Output is correct
9 Correct 2696 ms 91516 KB Output is correct
10 Correct 89 ms 4052 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 2294 ms 91596 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 4 ms 724 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 89 ms 3796 KB Output is correct
27 Correct 62 ms 3540 KB Output is correct
28 Correct 71 ms 3488 KB Output is correct
29 Correct 77 ms 4052 KB Output is correct
30 Correct 77 ms 4052 KB Output is correct
31 Correct 441 ms 27688 KB Output is correct
32 Correct 77 ms 4052 KB Output is correct
33 Correct 76 ms 4024 KB Output is correct
34 Correct 76 ms 4052 KB Output is correct
35 Correct 439 ms 27632 KB Output is correct
36 Correct 45 ms 2900 KB Output is correct
37 Correct 72 ms 3796 KB Output is correct
38 Correct 69 ms 3540 KB Output is correct
39 Correct 63 ms 3244 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 4 ms 724 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 2731 ms 90264 KB Output is correct
31 Correct 2824 ms 91468 KB Output is correct
32 Correct 2553 ms 91468 KB Output is correct
33 Correct 2816 ms 91536 KB Output is correct
34 Correct 2696 ms 91516 KB Output is correct
35 Correct 89 ms 4052 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 2294 ms 91596 KB Output is correct
39 Correct 89 ms 3796 KB Output is correct
40 Correct 62 ms 3540 KB Output is correct
41 Correct 71 ms 3488 KB Output is correct
42 Correct 77 ms 4052 KB Output is correct
43 Correct 77 ms 4052 KB Output is correct
44 Correct 441 ms 27688 KB Output is correct
45 Correct 77 ms 4052 KB Output is correct
46 Correct 76 ms 4024 KB Output is correct
47 Correct 76 ms 4052 KB Output is correct
48 Correct 439 ms 27632 KB Output is correct
49 Correct 45 ms 2900 KB Output is correct
50 Correct 72 ms 3796 KB Output is correct
51 Correct 69 ms 3540 KB Output is correct
52 Correct 63 ms 3244 KB Output is correct
53 Correct 2048 ms 79808 KB Output is correct
54 Correct 1978 ms 79768 KB Output is correct
55 Correct 2484 ms 91468 KB Output is correct
56 Correct 2483 ms 91576 KB Output is correct
57 Correct 2690 ms 91552 KB Output is correct
58 Correct 2466 ms 91556 KB Output is correct
59 Correct 2691 ms 91468 KB Output is correct
60 Correct 2252 ms 91592 KB Output is correct
61 Correct 1130 ms 66892 KB Output is correct
62 Correct 2103 ms 85632 KB Output is correct
63 Correct 1931 ms 79828 KB Output is correct
64 Correct 1744 ms 73932 KB Output is correct