#include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long LL; typedef pair PII; typedef vector VI; typedef vector VPII; typedef pair PLL; typedef pair PIL; typedef pair PLI; typedef double DB; typedef long double LD; #define pb push_back #define all(x) (x).begin(), (x).end() #define bit(x) (1 << (x)) #define bitl(x) (1LL << (x)) #define sqr(x) ((x) * (x)) #define sz(x) ((int)(x.size())) #define counti(x) (__builtin_popcount(x)) #define countl(x) (__builtin_popcountll(x)) #define rep(i, n) for (int (i) = 0; (i) < (int)(n); ++(i)) #define X first #define Y second template inline void chkmax(T& x, U y) { if (x < y) x = y; } template inline void chkmin(T& x, U y) { if (y < x) x = y; } int get() { char c; while (c = getchar(), (c < '0' || c > '9') && (c != '-')); bool flag = (c == '-'); if (flag) c = getchar(); int x = 0; while (c >= '0' && c <= '9') { x = x * 10 + c - 48; c = getchar(); } return flag ? -x : x; } void output(int x) { if (x < 0) { putchar('-'); x = -x; } int len = 0, data[20]; while (x) { data[len++] = x % 10; x /= 10; } if (!len) data[len++] = 0; while (len--) putchar(data[len] + 48); putchar('\n'); } #define MOD 1000000007 #define MX 1005 int val[MX][MX]; int a[MX], p, n; inline void add(int &x, int y) { x += y; if (x >= MOD) x -= MOD; } int main() { int Tcase; for (scanf("%d", &Tcase); Tcase--;) { scanf("%d%d", &n, &p); for (int i = 1; i <= n; ++i) scanf("%d", a + i); val[0][0] = 1; int i, j; for (i = 1; i <= p; i++) val[0][i] = 0; for (i = 1; i <= n; i++) { for (j = 0; j < p; j++) { val[i][j] = val[i - 1][j]; int x = (j - a[i]) % p; if (x < 0) x += p; add(val[i][j], val[i - 1][x]); } } printf("%d\n", val[n][0]); } return 0; }