int n1, n2, m, ans;int res[MAXN];bool vis[MAXN], map[MAXN][MAXN];void init(){    int t1, t2;    memset(map, 0, sizeof(map));    memset(res, 0, sizeof(res));    ans = 0;    scanf("%d%d",&n1,&n2);    //get map[][]}bool find(int a) {    for (int i = 1; i <= n2; ++i) {        if (map[a][i] == 1 && !vis[i]) {            vis[i] = true;            if (res[i] == 0 || find(res[i])) {                res[i] = a;                return true;            }        }    }    return false;}int main() {    init();    for (int i = 1; i <= n1; ++i) {        memset(vis, 0, sizeof(vis));        if (find(i)) ++ans;    }    printf("%d\n",ans);    return 0;}