Add files via upload

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PKU-ZLR 2019-12-07 12:57:00 +08:00 committed by GitHub
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include/Match.h Normal file
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#include "Circuit.h"
#include <bits/stdc++.h>
#define mem(x) memset(x, 0, sizeof(x))
using namespace std;
const int N = 4005;
/*vector<string> Match::splits(string str, string separator) { // split a string by the separator
vector<string> dest;
string substring;
string::size_type start = 0, index;
do {
index = str.find_first_of(separator, start);
if (index != string::npos) {
substring = str.substr(start, index - start);
dest.push_back(substring);
start = str.find_first_not_of(separator, index);
if (start == string::npos) {
return dest;
}
}
} while (index != string::npos);
substring = str.substr(start); // the last substring
dest.push_back(substring);
return dest;
}*/
struct Match{
int u[N * N], v[N * N], next[N * N];
int n, m, ans, cnt, MK;
set<string> st[N];
string name[N];
queue<int> Q;
int h[N], mat[N], col[N], nex[N], ufs[N], fa[N], vis[N], mark[N];
Match() {}
int getMatch(string dir);
int Find(int x);
int LCA(int x,int y);
void merge(int x,int y,int lca);
void augment(int x);
void match(int s);
vector<string> splits(string str, string separator);
};
vector<string> Match::splits(string str, string separator) { // split a string by the separator
vector<string> dest;
string substring;
string::size_type start = 0, index;
do {
index = str.find_first_of(separator, start);
if (index != string::npos) {
substring = str.substr(start, index - start);
dest.push_back(substring);
start = str.find_first_not_of(separator, index);
if (start == string::npos) {
return dest;
}
}
} while (index != string::npos);
substring = str.substr(start); // the last substring
dest.push_back(substring);
return dest;
}
int Match::Find(int x)
{
return ufs[x] == x ? x : ufs[x] = Find(ufs[x]);
}
int Match::LCA(int x,int y)
{
MK++;
for (;;)
{
if (x)
{
if (mark[x] == MK) return x;
mark[x] = MK;
x = Find(fa[mat[x]]);
}
swap(x, y);
}
}
void Match::merge(int x,int y,int lca)
{
while (Find(x) != lca)
{
nex[x] = y, y = mat[x];
if (col[y])
col[y] = 0, Q.push(y);
if (ufs[x] == x)
ufs[x]=lca;
if (ufs[y] == y)
ufs[y]=lca;
x=nex[y];
}
}
void Match::augment(int x)
{
int y = mat[x];
mat[x] = 0, x = nex[y];
while (x)
{
mat[y]=x,swap(mat[x],y);
x=nex[y];
}
}
void Match::match(int s)
{
int x, y;
for (int i = 1; i <= n; i++)
fa[i] = nex[i] = 0, ufs[i] = i;
while (!Q.empty())
Q.pop();
Q.push(s), vis[s] = ++cnt;
while (!Q.empty())
{
int i;
for (i = h[x = Q.front()], Q.pop(); y = v[i], i; i = next[i])
if (vis[y] != cnt)
if (!mat[y])
{
augment(x), mat[x] = y, mat[y] = x, ans++;
return;
}
else
{
fa[y] = nex[y] = x,vis[y] = vis[mat[y]] = cnt;
col[y] = 1, col[mat[y]] = 0, Q.push(mat[y]);
}
else if (col[y] == 0 && Find(y) != Find(x))
{
int lca = LCA(ufs[x], ufs[y]);
merge(x, y, lca), merge(y, x, lca);
}
}
}
int Match::getMatch(string dir)
{
ifstream fin(dir, ios::in);
string s;
n = 0, m = 0, ans = 0, cnt = 0, MK = 0;
mem(u), mem(v), mem(next);
mem(h), mem(mat), mem(col), mem(nex), mem(ufs), mem(fa), mem(vis), mem(mark);
if (!fin.is_open()) {
return -1;
}
while (true) {
bool end = false;
while (fin >> s) {
if (s == ".names") {
break;
}
if (s == ".end") {
end = true;
break;
}
}
if (end) {
break;
}
getline(fin, s);
vector<string> names = splits(s, " ");
++n;
st[n].clear();
for (int i = 1; i < names.size() - 1; i++) {
st[n].insert(names[i]);
//cout << names[i] << endl;
//cout << i << endl;
}
if (names[names.size() - 1] != "\\")
name[n] = names[names.size() - 1];
else {
fin >> name[n];
}
//cout << n << endl;
}
fin.close();
int tot = 0;
for (int i = 1; i < n; i++)
{
for (int j = i + 1; j <= n; j++)
{
set<string> str = st[i];
str.insert(st[j].begin(), st[j].end());
if (str.size() > 5) continue;
++tot;
next[tot] = h[i], u[tot] = i, v[tot] = j;
h[i] = tot;
++tot;
next[tot] = h[j], u[tot] = j, v[tot] = i;
h[j] = tot;
}
}
for (int i = 1; i <= n; i++)
if (!mat[i])
match(i);
vector<string> dirs = splits(dir, "/");
string outdir = "result/" + dirs[1] + "/" + dirs[2] + ".out";
cout << outdir << endl;
FILE *out;
out = fopen(outdir.c_str(), "w");
for (int i = 1; i <= n; i++)
{
if (mat[i] == -1) continue;
if (mat[i] == 0) {
fprintf(out, "input:\n");
for (string sts : st[i])
fprintf(out, "%s ", sts.c_str());
fprintf(out, ("\noutput:\n" + name[i] + "\n").c_str());
} else {
fprintf(out, "input:\n");
set<string> nst = st[mat[i]];
nst.insert(st[i].begin(), st[i].end());
for (string sts : nst)
fprintf(out, "%s ", sts.c_str());
fprintf(out, ("\noutput:\n" + name[i] + " " + name[mat[i]]+ "\n").c_str());
mat[i] = -1;
}
}
return ans;
}