Submission #717583

#	Time	Username	Problem	Language	Result	Execution time	Memory
717583		vjudge1	Bitaro the Brave (JOI19_ho_t1)	C++17	20 / 100	5 ms	4800 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;

// bitch dont even know about std::string fucking retarded compiler huakuy
int h, w;
char str[3007][3007], siao[3007][3007], siai[3007][3007];

int main() {
  scanf("%d%d", &h, &w);
  for(int i=0; i<h; i++) {
    scanf("%s", str[i]);
  }
  for(int i=0; i<h; i++) {
    for(int j=0; j<w; j++) {
      if(str[i][j]=='O') {
        siao[i][j]++;
      }
      siao[i][j+1]=siao[i][j];
      if(str[i][j]=='I') {
        siai[i][j]++;
      }
      siai[i+1][j]=siai[i][j];
    }
  }
  long long int total=0;
  for(int i=0; i<h; i++) {
    for(int j=0; j<w; j++) {
      if(str[i][j]=='J') {
        total+=(siai[h-1][j]-siai[i][j])*(siao[i][w-1]-siao[i][j]);
      }
    }
  }
  printf("%lld", total);
  return 0;
}

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:9:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |   scanf("%d%d", &h, &w);
      |   ~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%s", str[i]);
      |     ~~~~~^~~~~~~~~~~~~~

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