#include<bits/stdc++.h>
using namespace std;
void DBG() { cerr << "]\n"; }
template<class H, class... T> void DBG(H h, T... t) {
cerr << h; if(sizeof...(t)) cerr << ", ";
DBG(t...);
}
#ifdef LOCAL
#define dbg(...) cerr << "[" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif // LOCAL
#define FOR(i,a,b) for(int i = (a) ; i<(b) ; i++)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for(int i = (b)-1 ; i>=(a) ; i--)
#define R0F(i,a) ROF(i,0,a)
#define each(e,a) for(auto &e : (a))
#define sz(v) (int)(v).size()
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pb push_back
#define tcT template<class T
#define nl "\n"
using ll = long long;
using vi = vector<int>;
using pi = pair<int,int>;
using str = string;
tcT> using V = vector<T>;
tcT> using pqg = priority_queue<T,vector<T>,greater<T>>;
void setIO(string NAME = "") {
cin.tie(0)->sync_with_stdio(0);
if(sz(NAME)) {
freopen((NAME + ".inp").c_str(),"r",stdin);
freopen((NAME + ".out").c_str(),"w",stdout);
}
}
const int MX = 3e3+5;
int cntI[MX], cntO[MX], W, H;
str s[MX];
ll ans = 0;
void solve() {
cin>>H>>W;
F0R(i,H) cin>>s[i];
R0F(i,H) R0F(j,W) {
if(s[i][j] == 'J') ans += 1LL*cntI[j]*cntO[i];
else if(s[i][j] == 'O') cntO[i]++;
else cntI[j]++;
}
cout << ans << nl;
}
int main() {
setIO();
int t=1;
//cin>>t;
while(t-->0) {
solve();
}
return 0;
}
Compilation message
joi2019_ho_t1.cpp: In function 'void setIO(std::string)':
joi2019_ho_t1.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
37 | freopen((NAME + ".inp").c_str(),"r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
38 | freopen((NAME + ".out").c_str(),"w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
428 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
428 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
424 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
428 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
428 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
424 KB |
Output is correct |
14 |
Correct |
3 ms |
724 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
596 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
3 ms |
940 KB |
Output is correct |
19 |
Correct |
2 ms |
888 KB |
Output is correct |
20 |
Correct |
1 ms |
852 KB |
Output is correct |
21 |
Correct |
3 ms |
852 KB |
Output is correct |
22 |
Correct |
2 ms |
812 KB |
Output is correct |
23 |
Correct |
2 ms |
852 KB |
Output is correct |
24 |
Correct |
3 ms |
944 KB |
Output is correct |
25 |
Correct |
3 ms |
852 KB |
Output is correct |
26 |
Correct |
2 ms |
852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
428 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
428 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
424 KB |
Output is correct |
14 |
Correct |
3 ms |
724 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
596 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
3 ms |
940 KB |
Output is correct |
19 |
Correct |
2 ms |
888 KB |
Output is correct |
20 |
Correct |
1 ms |
852 KB |
Output is correct |
21 |
Correct |
3 ms |
852 KB |
Output is correct |
22 |
Correct |
2 ms |
812 KB |
Output is correct |
23 |
Correct |
2 ms |
852 KB |
Output is correct |
24 |
Correct |
3 ms |
944 KB |
Output is correct |
25 |
Correct |
3 ms |
852 KB |
Output is correct |
26 |
Correct |
2 ms |
852 KB |
Output is correct |
27 |
Correct |
95 ms |
17944 KB |
Output is correct |
28 |
Correct |
1 ms |
468 KB |
Output is correct |
29 |
Correct |
3 ms |
1724 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
60 ms |
13184 KB |
Output is correct |
32 |
Correct |
43 ms |
18844 KB |
Output is correct |
33 |
Correct |
39 ms |
18784 KB |
Output is correct |
34 |
Correct |
68 ms |
15200 KB |
Output is correct |
35 |
Correct |
37 ms |
18668 KB |
Output is correct |
36 |
Correct |
39 ms |
18876 KB |
Output is correct |
37 |
Correct |
88 ms |
19096 KB |
Output is correct |
38 |
Correct |
30 ms |
13092 KB |
Output is correct |
39 |
Correct |
27 ms |
13032 KB |
Output is correct |