Submission #227820

#TimeUsernameProblemLanguageResultExecution timeMemory
227820kig9981Dango Maker (JOI18_dango_maker)C++17
100 / 100
217 ms19064 KiB
#include <bits/stdc++.h> #ifdef NON_SUBMIT #define TEST(n) (n) #define tout cerr #else #define TEST(n) ((void)0) #define tout cin #endif using namespace std; vector<string> F; int N, M, D[3]; bool valid_coord(int x, int y) { return 0<=x && x<N && 0<=y && y<M; } bool check_V(int x, int y) { return x && x+1<N && F[x-1][y]=='R' && F[x][y]=='G' && F[x+1][y]=='W'; } bool check_H(int x, int y) { return y && y+1<M && F[x][y-1]=='R' && F[x][y]=='G' && F[x][y+1]=='W'; } int main() { ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); TEST(freopen("input.txt","r",stdin)); TEST(freopen("output.txt","w",stdout)); TEST(freopen("debug.txt","w",stderr)); int x, y, T[3], ans=0; cin>>N>>M; F.resize(N); for(int i=0;i<N;i++) cin>>F[i]; for(int i=0;i<N+M-1;i++) { int mx=0; for(int k=0;k<3;k++) D[k]=0; for(int j=0;j<N;j++) if(valid_coord(x=j,y=i-j)) { for(int k=0;k<3;k++) T[k]=D[k]; D[0]=max({T[0],T[1],T[2]}); if(check_V(x,y)) D[1]=max(T[0],T[1])+1; if(check_H(x,y)) D[2]=max(T[0],T[2])+1; mx=max({D[0],D[1],D[2]}); } ans+=mx; } cout<<ans<<'\n'; return 0; }
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