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43 lines (43 loc) · 946 Bytes
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isMatch.cc
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43 lines (43 loc) · 946 Bytes
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bool isMatch(const char *s, const char *p) {
int n = strlen(s), m = strlen(p);
vector<vector<int> > f;
for (int i = 0; i <= m; i++) {
vector<int> tmp(n + 1, 0);
f.push_back(tmp);
}
f[0][0] = 1;
for (int i = 0; i < m; ) {
char c = p[i];
int flag = 0;
if (i < m - 1 && p[i + 1] == '*') {
flag = 1;
}
int nxt = i + 1 + flag;
if (flag) {
f[nxt][0] = f[i][0];
}
for (int j = 0; j < n; ) {
if (!flag) {
if (s[j] == c || c == '.') {
f[nxt][j + 1] = f[i][j];
} else {
}
++j;
} else {
if (s[j] == c || c == '.') {
int value = f[i][j];
while (j < n && (s[j] == c || c == '.')) {
value |= f[i][j + 1];
f[nxt][j + 1] |= value;
++j;
}
} else {
f[nxt][j + 1] = f[i][j + 1];
++j;
}
}
}
i = nxt;
}
return f[m][n];
}