//Nếu thế giới có 8 tỷ người yêu em, anh là một trong số họ
//Nếu thế giới có 1 người yêu em, thì anh chính là người đó
//Nếu thế giới không còn ai yêu em, thì có nghĩa là anh đã chết </3
//dyk19b1
#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
#define FORD(i, b, a) for (int i = (b), _a = (a); i >= _a; i--)
#define BIT(mask,i) ((mask >> i) & 1ll )
#define endl '\n'
#define all(x) x.begin(),x.end()
#define ii pair <int,int>
using namespace std;
#define read doc()
int doc () {bool minus = false;int result = 0;char ch;ch = getchar();while (true) {if (ch == '-') break;if (ch >= '0' && ch <= '9') break;ch = getchar();}if (ch == '-') minus = true; else result = ch-'0';while (true) {ch = getchar();if (ch < '0' || ch > '9') break;result = result*10 + (ch - '0');}if (minus)return -result;else return result;}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template <class T> T rand(T l, T h) { return uniform_int_distribution <T> (l, h) (rng); }
template <class T> T rand(T h) { return uniform_int_distribution <T> (0, h - 1) (rng); }
template<class X, class Y>bool minimize(X &x, const Y &y) {if (x > y) {x = y;return true;} else return false;}
template<class X, class Y>bool maximize(X &x, const Y &y) {if (x < y) {x = y;return true;} else return false;}
const long long oo = 1e18;
const int N = 3005+5;
const int MOD = 1e9+7;
vector <ii> J;
int O[N][N],I[N][N];
void TnKh()
{
int n,m;
cin >> n >> m;
FOR(i,1,n) FOR(j,1,m)
{
char x;
cin >> x;
if (x == 'J') J.push_back({i,j});
if (x == 'O') O[i][j]++;
if (x == 'I') I[i][j]++;
}
FOR(i,1,n)
FORD(j,m-1,1)
{
O[i][j] += O[i][j+1];
}
FOR(j,1,m)
FORD(i,n-1,1)
{
I[i][j] += I[i+1][j];
}
int ans = 0;
for(auto [i,j]:J)
{
ans += O[i][j+1] * I[i+1][j];
}
cout << ans;
return;
}
#define TASK "task"
signed main()
{
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
// freopen(TASK".inp","r",stdin);freopen(TASK".out","w",stdout);
int Dyk19b1 = 1;
// cin >> Dyk19b1;
while (Dyk19b1--) TnKh();
return 0;
}
Compilation message
joi2019_ho_t1.cpp: In function 'void TnKh()':
joi2019_ho_t1.cpp:52:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
52 | for(auto [i,j]:J)
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
4572 KB |
Output is correct |
5 |
Correct |
2 ms |
8784 KB |
Output is correct |
6 |
Correct |
2 ms |
8528 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
8784 KB |
Output is correct |
9 |
Correct |
2 ms |
8784 KB |
Output is correct |
10 |
Correct |
1 ms |
6736 KB |
Output is correct |
11 |
Correct |
2 ms |
8784 KB |
Output is correct |
12 |
Correct |
3 ms |
8528 KB |
Output is correct |
13 |
Correct |
2 ms |
6736 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
4572 KB |
Output is correct |
5 |
Correct |
2 ms |
8784 KB |
Output is correct |
6 |
Correct |
2 ms |
8528 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
8784 KB |
Output is correct |
9 |
Correct |
2 ms |
8784 KB |
Output is correct |
10 |
Correct |
1 ms |
6736 KB |
Output is correct |
11 |
Correct |
2 ms |
8784 KB |
Output is correct |
12 |
Correct |
3 ms |
8528 KB |
Output is correct |
13 |
Correct |
2 ms |
6736 KB |
Output is correct |
14 |
Correct |
10 ms |
28364 KB |
Output is correct |
15 |
Correct |
3 ms |
21072 KB |
Output is correct |
16 |
Correct |
6 ms |
15820 KB |
Output is correct |
17 |
Correct |
2 ms |
4432 KB |
Output is correct |
18 |
Correct |
11 ms |
29416 KB |
Output is correct |
19 |
Correct |
7 ms |
27856 KB |
Output is correct |
20 |
Correct |
8 ms |
29384 KB |
Output is correct |
21 |
Correct |
10 ms |
29392 KB |
Output is correct |
22 |
Correct |
9 ms |
29384 KB |
Output is correct |
23 |
Correct |
9 ms |
29552 KB |
Output is correct |
24 |
Correct |
14 ms |
29384 KB |
Output is correct |
25 |
Correct |
6 ms |
28028 KB |
Output is correct |
26 |
Correct |
8 ms |
29384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
4572 KB |
Output is correct |
5 |
Correct |
2 ms |
8784 KB |
Output is correct |
6 |
Correct |
2 ms |
8528 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
8784 KB |
Output is correct |
9 |
Correct |
2 ms |
8784 KB |
Output is correct |
10 |
Correct |
1 ms |
6736 KB |
Output is correct |
11 |
Correct |
2 ms |
8784 KB |
Output is correct |
12 |
Correct |
3 ms |
8528 KB |
Output is correct |
13 |
Correct |
2 ms |
6736 KB |
Output is correct |
14 |
Correct |
10 ms |
28364 KB |
Output is correct |
15 |
Correct |
3 ms |
21072 KB |
Output is correct |
16 |
Correct |
6 ms |
15820 KB |
Output is correct |
17 |
Correct |
2 ms |
4432 KB |
Output is correct |
18 |
Correct |
11 ms |
29416 KB |
Output is correct |
19 |
Correct |
7 ms |
27856 KB |
Output is correct |
20 |
Correct |
8 ms |
29384 KB |
Output is correct |
21 |
Correct |
10 ms |
29392 KB |
Output is correct |
22 |
Correct |
9 ms |
29384 KB |
Output is correct |
23 |
Correct |
9 ms |
29552 KB |
Output is correct |
24 |
Correct |
14 ms |
29384 KB |
Output is correct |
25 |
Correct |
6 ms |
28028 KB |
Output is correct |
26 |
Correct |
8 ms |
29384 KB |
Output is correct |
27 |
Correct |
281 ms |
194184 KB |
Output is correct |
28 |
Correct |
11 ms |
106452 KB |
Output is correct |
29 |
Correct |
11 ms |
19652 KB |
Output is correct |
30 |
Correct |
2 ms |
4972 KB |
Output is correct |
31 |
Correct |
197 ms |
157596 KB |
Output is correct |
32 |
Correct |
172 ms |
164232 KB |
Output is correct |
33 |
Correct |
208 ms |
197500 KB |
Output is correct |
34 |
Correct |
271 ms |
193440 KB |
Output is correct |
35 |
Correct |
222 ms |
196484 KB |
Output is correct |
36 |
Correct |
216 ms |
197524 KB |
Output is correct |
37 |
Correct |
306 ms |
207192 KB |
Output is correct |
38 |
Correct |
142 ms |
135592 KB |
Output is correct |
39 |
Correct |
137 ms |
157604 KB |
Output is correct |