简单题。
#pragma comment(linker, "/STACK:1024000000,1024000000") #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> #include<vector> #include<map> #include<set> #include<queue> #include<stack> #include<iostream> using namespace std; typedef long long LL; const double pi=acos(-1.0),eps=1e-6; void File() { freopen("D:\in.txt","r",stdin); freopen("D:\out.txt","w",stdout); } template <class T> inline void read(T &x) { char c = getchar(); x = 0;while(!isdigit(c)) c = getchar(); while(isdigit(c)) { x = x * 10 + c - '0'; c = getchar(); } } int n,m; bool f; int main() { scanf("%d%d",&n,&m); for(int i=1;i<=n;i++) { for(int j=1;j<=m;j++) { char op[5]; scanf("%s",op); if(op[0]=='C'||op[0]=='M'||op[0]=='Y') f=1; } } if(f) printf("#Color "); else printf("#Black&White "); return 0; }