제출 #157928

#제출 시각아이디문제언어결과실행 시간메모리
157928GioChkhaidzeBitaro the Brave (JOI19_ho_t1)C++14
100 / 100
520 ms88632 KiB
#include <bits/stdc++.h> using namespace std; const int N=3005; int n,m,Orb[N][N],Ingot[N][N]; long long ANS; char c[N][N]; main () { ios::sync_with_stdio(false); cin>>n>>m; for (int i=1; i<=n; i++) { for (int j=1; j<=m; j++) cin>>c[i][j]; } for (int i=1; i<=n; i++) { int cnt=0; for (int j=m; j>=1; j--) { Orb[i][j]=cnt; cnt+=(c[i][j]=='O'); } } for (int j=1; j<=m; j++) { int cnt=0; for (int i=n; i>=1; i--) { Ingot[i][j]=cnt; cnt+=(c[i][j]=='I'); } } for (int i=1; i<=n; i++) { for (int j=1; j<=m; j++) if (c[i][j]=='J') ANS+=Ingot[i][j]*Orb[i][j]; } cout<<ANS<<endl; }

컴파일 시 표준 에러 (stderr) 메시지

joi2019_ho_t1.cpp:7:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^
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