Submission #418219

#TimeUsernameProblemLanguageResultExecution timeMemory
418219tgehrBitaro the Brave (JOI19_ho_t1)C++14
100 / 100
157 ms151328 KiB
// -*- compile-command: "g++ -g -Wno-return-type -Wall -Wextra -DLOCAL -std=c++17 -D_GLIBCXX_DEBUG ho_t1.cpp -oho_t1 && ./ho_t1 " -*- #include <bits/stdc++.h> using namespace std; using LL=long long; #define int LL #define vc vector #define pb push_back #define pr pair #define fi first #define se second #define sz(v) ((int)(v).size()) #define all(v) (v).begin(),(v).end() #define f(i,n) for(int i=0;i<(n);i++) #define fr(i,n) for(int i=(n);i--;) #define fv(i,v) f(i,sz(v)) main(){ ios::sync_with_stdio(0),cin.tie(0); int h,w; cin>>h>>w; vc<string> s(h); f(i,h) cin>>s[i]; vc<vc<int>> ning(h,vc<int>(w)); vc<vc<int>> norb(h,vc<int>(w)); fr(i,h) fr(j,w){ ning[i][j]+=(s[i][j]=='I')+(i+1<h?ning[i+1][j]:0); norb[i][j]+=(s[i][j]=='O')+(j+1<w?norb[i][j+1]:0); } int r=0; f(i,h) f(j,w){ if(s[i][j]=='J') r+=ning[i][j]*norb[i][j]; } cout<<r<<'\n'; }

Compilation message (stderr)

joi2019_ho_t1.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main(){
      | ^~~~
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