54 lines
985 B
C++
54 lines
985 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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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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string line;
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vector<vector<pair<int, int>>> m;
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while (getline(cin, line) && !line.empty()) {
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istringstream l(line);
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char c;
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vector<pair<int, int>> mm;
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while (l >> c) {
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mm.push_back({c - '0', c == '9' ? 1 : 0});
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}
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m.push_back(mm);
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}
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int xm = m.size(), ym = m[0].size();
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for (int i = 9; i > 0; i--) {
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for (int x = 0; x < xm; x++) {
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for (int y = 0; y < ym; y++) {
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auto &[n, c] = m[x][y];
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if (n != i) {
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continue;
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}
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vector<pair<int, int>> xxyy = {
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{x - 1, y}, {x + 1, y}, {x, y - 1}, {x, y + 1}};
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for (auto &[xx, yy] : xxyy) {
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if (xx < 0 || yy < 0 || xx >= xm || yy >= ym) {
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continue;
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}
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auto &[nn, cc] = m[xx][yy];
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if (nn == n - 1) {
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cc += c;
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}
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}
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}
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}
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}
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int sum = 0;
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for (auto &mm : m) {
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for (auto &[n, c] : mm) {
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if (n == 0) {
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sum += c;
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}
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}
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}
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cout << sum << '\n';
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}
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