Submission #97281

#	Time	Username	Problem	Language	Result	Execution time	Memory
97281		model_code	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	96 ms	9464 KiB

joi2019_ho_t1

#include<stdio.h>
#include<math.h>
#include<algorithm>
#include<queue>
#include<deque>
#include<stack>
#include<string>
#include<string.h>
#include<vector>
#include<set>
#include<map>
#include<bitset>
#include<stdlib.h>
#include<cassert>
#include<time.h>
#include<bitset>
using namespace std;
const long long mod=1000000007;
const long long inf=mod*mod;
const long long d2=(mod+1)/2;
const long double EPS=1e-9;
const long double PI=acos(-1.0);
int ABS(int a){return max(a,-a);}
long long ABS(long long a){return max(a,-a);}
long double ABS(long double a){return max(a,-a);}
int T[3100];
char in[3100][3100];
int main(){
	int a,b;scanf("%d%d",&a,&b);
	for(int i=0;i<a;i++)scanf("%s",in[i]);
	long long ret=0;
	for(int i=a-1;i>=0;i--){
		int tmp=0;
		for(int j=b-1;j>=0;j--){
			if(in[i][j]=='O')tmp++;
			if(in[i][j]=='I')T[j]++;
			if(in[i][j]=='J'){
				ret+=tmp*T[j];
			}
		}
	}
	printf("%lld\n",ret);
}

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:29:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int a,b;scanf("%d%d",&a,&b);
          ~~~~~^~~~~~~~~~~~~~
joi2019_ho_t1.cpp:30:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<a;i++)scanf("%s",in[i]);
                      ~~~~~^~~~~~~~~~~~

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