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peg.cpp
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#include <iostream>
#include <vector>
using namespace std;
bool valid(vector<vector<char>> v, int i, int j) {
if(i < 0 || j < 0 || i > 6 || j > 6) {
return false;
}
if(v[i][j] == 'o') {
return true;
}
return false;
}
int main() {
vector<vector<char>> v;
v.resize(7);
for(int i = 0; i < 7; i++) {
v[i].resize(7, ' ');
}
for(int i = 0; i < 7; i++) {
for(int j = 0; j < 7; j++) {
cin.get(v[i][j]);
}
cin.ignore();
}
int total = 0;
for(int i = 0; i < 7; i++) {
for(int j = 0; j < 7; j++) {
if(v[i][j] == '.') {
if(valid(v, i+2, j) && valid(v, i+1, j)) {
total++;
}
if(valid(v, i-2, j) && valid(v, i-1, j)) {
total++;
}
if(valid(v, i, j+2) && valid(v, i, j+1)) {
total++;
}
if(valid(v, i, j-2) && valid(v, i, j-1)) {
total++;
}
}
}
}
cout << total << endl;
}