题意：
思路：
1 #include<cstdio> 2 #include<cstdlib> 3 #include<iostream> 4 #include<algorithm> 5 #include<cstring> 6 #define MOD 1000000007 7 typedef long long LL; 8 using namespace std; 9 LL n,k,ans; 10 11 LL pow(LL x,LL y) 12 { 13 LL s=1; LL t=x; 14 while(y) 15 { 16 if(y&1) s=s*t%MOD; 17 t=t*t%MOD; 18 y>>=1; 19 } 20 return s; 21 } 22 23 24 int main() 25 { 26 freopen("bzoj4475.in","r",stdin); 27 freopen("bzoj4475.out","w",stdout); 28 scanf("%lld%lld",&n,&k); 29 ans=pow(2,n*k); 30 printf("%lld ",ans); 31 return 0; 32 } 33 34 35 36