Pagini recente » Cod sursa (job #2972989) | Cod sursa (job #2489762) | Cod sursa (job #3226548) | Cod sursa (job #2682337) | Cod sursa (job #2533430)
#include <fstream>
using namespace std;
ifstream fin("diamant.in");
ofstream fout("diamant.out");
const int MOD = 10000, NMax = 20, SMax = 40000;
int N, M, X, Cost[NMax * NMax + 5], ct, DP[2][2 * SMax + 5], oo = 2 * SMax + 2;
int Norm(int sum)
{
sum += SMax;
if(sum < 0)
return oo;
else if(sum > 2 * SMax)
return oo;
return sum;
}
int main()
{
fin >> N >> M >> X;
for(int i = 1; i <= N; i++)
for(int j = 1; j <= M; j++)
Cost[++ct] = i * j;
DP[0][SMax] = 1;
for(int code = 1; code <= ct; code++)
{
int line = (code & 1), linePred = ((code - 1) & 1), cost = Cost[code];
for(int sum = -SMax; sum <= SMax; sum++)
DP[line][Norm(sum)] = (DP[linePred][Norm(sum)] + DP[linePred][Norm(sum + cost)] + DP[linePred][Norm(sum - cost)]) % MOD;
}
fout << DP[ct & 1][Norm(X)] << '\n';
fin.close();
fout.close();
return 0;
}