70 lines
1.3 KiB
C++
70 lines
1.3 KiB
C++
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#include <bits/stdc++.h>
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using namespace std;
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inline bool isDigit(char ch) {
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return ch >= '0' && ch <= '9';
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}
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int main() {
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ios::sync_with_stdio(0);
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cin.tie(0);
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vector<string> lines;
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do {
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string line;
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getline(cin, line);
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if (line.empty())
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break;
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lines.push_back(line);
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} while (!cin.eof());
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int ret = 0;
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for (int r = 0; r < lines.size(); r++) {
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auto& line = lines[r];
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int cend = line.size();
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for (int c = 0; c < cend; c++) {
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char ch = line[c];
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if (ch != '*')
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continue;
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vector<int> rs = {r}, cs = {c};
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if (r > 0) {
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rs.push_back(r - 1);
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if (r < lines.size() - 1)
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rs.push_back(r + 1);
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}
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if (c > 0) {
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cs.push_back(c - 1);
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if (c < cend - 1)
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cs.push_back(c + 1);
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}
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int p = 1;
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int n = 0;
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for (int rr : rs) {
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for (int cc : cs) {
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if (r == 0 && c == 0)
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continue;
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auto& lo = lines[rr];
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if (isDigit(lo[cc])) {
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int ci = cc, cf = cc;
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while (ci > 0 && isDigit(lo[ci - 1]))
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ci--;
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while (cf < cend - 1 && isDigit(lo[cf + 1]))
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cf++;
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p *= stoi(lo.substr(ci, cf - ci + 1));
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for (int i = ci; i <= cf; i++)
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lo[i] = '.';
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if (++n > 2)
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goto rrccend;
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}
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}
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}
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rrccend:
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if (n == 2)
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ret += p;
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}
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}
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cout << ret << '\n';
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}
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