Submission #381623

#	Time	Username	Problem	Language	Result	Execution time	Memory
381623		Iwanttobreakfree	Bitaro the Brave (JOI19_ho_t1)	C++17	0 / 100	1 ms	384 KiB

joi2019_ho_t1

#include <iostream>
#include <vector>
using namespace std;
int main(){
	int h,w;
	cin>>h>>w;
	char grid[h][w];
	vector<pair<int,int> > v;
	vector<int> ie(w,0);
	vector<int> o(h,0);
	for(int i=0;i<h;i++){
		for(int j=0;j<w;j++){
			cin>>grid[i][j];
			if(grid[i][j]=='J')v.push_back(make_pair(i,j));
			if(grid[i][j]=='I')ie[j]++;
			if(grid[i][j]=='O')o[i]++;
		}
	}
	int n=v.size();
	int sol=0;
	for(int j=0;j<n;j++){
		int x=v[j].first;
		int y=v[j].second;
		sol+=ie[x]*o[y];
	}
	cout<<sol<<'\n';
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50