제출 #1261357

#제출 시각아이디문제언어결과실행 시간메모리
1261357sasdeBitaro the Brave (JOI19_ho_t1)C++20
0 / 100
1 ms324 KiB
#include<bits/stdc++.h> using namespace std; const int N=3e3+5,lg=30,mod=1e9+7; int hieght,width; bitset<N>s[N],s1[N]; char a[N][N]; main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); cin >> hieght >> width; for(int i=1;i<=hieght;++i){ for(int j=1;j<=width;++j){ cin >> a[i][j]; } } long long ans=0; for(int k=1;k<=hieght;++k){ long long val=0; for(int l=1;l<=width;++l){ ans+=val; if(a[k][l]=='I'){ bitset<N>x=s[l]&s1[l]; val+=x.count(); } } for(int l=1;l<=width;++l){ if(a[k][l]=='O')s1[l][k]=1; if(a[k][l]=='J')s[l][k]=1; } } cout << ans; }

컴파일 시 표준 에러 (stderr) 메시지

joi2019_ho_t1.cpp:8:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | main()
      | ^~~~
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