Submission #1023576

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023576		vjudge1	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	127 ms	18572 KiB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define nmax 3007
#define fi first
#define se second
#define ll long long
ll t=1,n,m=0,i=0,j=0,d=0,x=0,k=0,y=0,z,h[nmax][200],c[nmax][200];
char ch[3007][3007];
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin>>n>>m;
    for(i=1;i<=n;++i)
    {
        for(j=1;j<=m;++j)
        {
            cin>>ch[i][j];
            h[i][ch[i][j]]++;
            c[j][ch[i][j]]++;
        }
    }
    d=0;
    for(i=1;i<=n;++i)
    {
        for(j=1;j<=m;++j)
        {
            h[i][ch[i][j]]--;
            c[j][ch[i][j]]--;
            if(ch[i][j]=='J')
            {
                d+=h[i]['O']*c[j]['I'];
            }
        }
    }
    cout<<d;
}

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:19:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   19 |             h[i][ch[i][j]]++;
      |                  ~~~~~~~^
joi2019_ho_t1.cpp:20:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   20 |             c[j][ch[i][j]]++;
      |                  ~~~~~~~^
joi2019_ho_t1.cpp:28:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   28 |             h[i][ch[i][j]]--;
      |                  ~~~~~~~^
joi2019_ho_t1.cpp:29:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   29 |             c[j][ch[i][j]]--;
      |                  ~~~~~~~^

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50