#include <cstdio>
#include <map>
using namespace std;
typedef pair<int,int> ii;
typedef pair<int,ii> iii;
map<iii,int> ma[2],mb[2],mc[2];
int main(){
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
int to=a+b+c;
ma[0][iii(0,ii(0,0))]=0;
mb[0][iii(0,ii(0,0))]=1;
mc[0][iii(0,ii(0,0))]=0;
for(int i=0;i<to;i++){
for(int j=0;j<=i && j<=a;j++){
for(int k=0;j+k<=i && k<=b;k++){
if(i-j-k<=c){
if(i%2==0){
ma[1][iii(j+1,ii(k,i-j-k))]+=ma[0][iii(j,ii(k,i-j-k))];
mb[1][iii(j+1,ii(k,i-j-k))]+=mb[0][iii(j,ii(k,i-j-k))];
mc[1][iii(j+1,ii(k,i-j-k))]+=mc[0][iii(j,ii(k,i-j-k))];
ma[1][iii(j+1,ii(k,i-j-k))]%=1000000007;
mb[1][iii(j+1,ii(k,i-j-k))]%=1000000007;
mc[1][iii(j+1,ii(k,i-j-k))]%=1000000007;
ma[1][iii(j,ii(k+1,i-j-k))]+=ma[0][iii(j,ii(k,i-j-k))];
mb[1][iii(j,ii(k+1,i-j-k))]+=mb[0][iii(j,ii(k,i-j-k))];
mc[1][iii(j,ii(k+1,i-j-k))]+=mc[0][iii(j,ii(k,i-j-k))];
ma[1][iii(j,ii(k+1,i-j-k))]%=1000000007;
mb[1][iii(j,ii(k+1,i-j-k))]%=1000000007;
mc[1][iii(j,ii(k+1,i-j-k))]%=1000000007;
if((j+k)%2==0){
ma[1][iii(j,ii(k,i-j-k+1))]+=mb[0][iii(j,ii(k,i-j-k))];
mb[1][iii(j,ii(k,i-j-k+1))]+=mc[0][iii(j,ii(k,i-j-k))];
mc[1][iii(j,ii(k,i-j-k+1))]+=ma[0][iii(j,ii(k,i-j-k))];
}else{
ma[1][iii(j,ii(k,i-j-k+1))]+=mc[0][iii(j,ii(k,i-j-k))];
mb[1][iii(j,ii(k,i-j-k+1))]+=ma[0][iii(j,ii(k,i-j-k))];
mc[1][iii(j,ii(k,i-j-k+1))]+=mb[0][iii(j,ii(k,i-j-k))];
}
ma[1][iii(j,ii(k,i-j-k+1))]%=1000000007;
mb[1][iii(j,ii(k,i-j-k+1))]%=1000000007;
mc[1][iii(j,ii(k,i-j-k+1))]%=1000000007;
}else{
ma[0][iii(j+1,ii(k,i-j-k))]+=ma[1][iii(j,ii(k,i-j-k))];
mb[0][iii(j+1,ii(k,i-j-k))]+=mb[1][iii(j,ii(k,i-j-k))];
mc[0][iii(j+1,ii(k,i-j-k))]+=mc[1][iii(j,ii(k,i-j-k))];
ma[0][iii(j+1,ii(k,i-j-k))]%=1000000007;
mb[0][iii(j+1,ii(k,i-j-k))]%=1000000007;
mc[0][iii(j+1,ii(k,i-j-k))]%=1000000007;
ma[0][iii(j,ii(k+1,i-j-k))]+=ma[1][iii(j,ii(k,i-j-k))];
mb[0][iii(j,ii(k+1,i-j-k))]+=mb[1][iii(j,ii(k,i-j-k))];
mc[0][iii(j,ii(k+1,i-j-k))]+=mc[1][iii(j,ii(k,i-j-k))];
ma[0][iii(j,ii(k+1,i-j-k))]%=1000000007;
mb[0][iii(j,ii(k+1,i-j-k))]%=1000000007;
mc[0][iii(j,ii(k+1,i-j-k))]%=1000000007;
if((j+k)%2==0){
ma[0][iii(j,ii(k,i-j-k+1))]+=mb[1][iii(j,ii(k,i-j-k))];
mb[0][iii(j,ii(k,i-j-k+1))]+=mc[1][iii(j,ii(k,i-j-k))];
mc[0][iii(j,ii(k,i-j-k+1))]+=ma[1][iii(j,ii(k,i-j-k))];
}else{
ma[0][iii(j,ii(k,i-j-k+1))]+=mc[1][iii(j,ii(k,i-j-k))];
mb[0][iii(j,ii(k,i-j-k+1))]+=ma[1][iii(j,ii(k,i-j-k))];
mc[0][iii(j,ii(k,i-j-k+1))]+=mb[1][iii(j,ii(k,i-j-k))];
}
ma[0][iii(j,ii(k,i-j-k+1))]%=1000000007;
mb[0][iii(j,ii(k,i-j-k+1))]%=1000000007;
mc[0][iii(j,ii(k,i-j-k+1))]%=1000000007;
}
}
}
}
if(i%2==0) {ma[0].clear();mb[0].clear();mc[0].clear();}
else {ma[1].clear();mb[1].clear();mc[1].clear();}
}
if(to%2==0) printf("%d\n%d\n%d\n",ma[0][iii(a,ii(b,c))],mc[0][iii(a,ii(b,c))],mb[0][iii(a,ii(b,c))]);
else printf("%d\n%d\n%d\n",ma[1][iii(a,ii(b,c))],mc[1][iii(a,ii(b,c))],mb[1][iii(a,ii(b,c))]);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
1220 KB |
Output is correct |
| 2 |
Correct |
0 ms |
1220 KB |
Output is correct |
| 3 |
Correct |
0 ms |
1220 KB |
Output is correct |
| 4 |
Correct |
0 ms |
1220 KB |
Output is correct |
| 5 |
Correct |
36 ms |
1220 KB |
Output is correct |
| 6 |
Execution timed out |
1500 ms |
1876 KB |
Program timed out |
| 7 |
Halted |
0 ms |
0 KB |
- |
