Created
January 21, 2020 15:06
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큰일났다.. 바보가 된거같아ㅠㅠㅠ
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#include <iostream> | |
#include <vector> | |
using namespace std; | |
int map[10][10]; | |
vector<pair<int,int>> vec; | |
bool check_v(int y,int num){ | |
for(int i=0; i<9; i++) { | |
if(num==map[i][y]) | |
return false; | |
} | |
return true; | |
} | |
bool check_h(int x,int num){ | |
for(int i=0; i<9; i++) { | |
if(num==map[x][i]) | |
return false; | |
} | |
return true; | |
} | |
bool check_s(int x, int y, int num){ | |
x=x/3; | |
y=y/3; | |
for(int i=x*3; i<x*3+3; i++) { | |
for(int j=y*3; j<y*3+3; j++) { | |
if(map[i][j]==num) | |
return false; | |
} | |
} | |
return true; | |
} | |
void dfs(int x,int cnt){ | |
if(cnt==vec.size()){ | |
for(int i=0; i<9; i++) { | |
for(int j=0; j<9; j++) { | |
cout<<map[i][j]<<" "; | |
} | |
cout<<endl; | |
} | |
exit(0); | |
} | |
for(int k=1; k<10; k++) { | |
if(check_h(vec[x].first,k) && check_v(vec[x].second,k) && check_s(vec[x].first, vec[x].second, k)) { | |
map[vec[x].first][vec[x].second]=k; | |
dfs(x+1,cnt+1); | |
map[vec[x].first][vec[x].second]=0; | |
} | |
} | |
} | |
int main() { | |
for(int i=0; i<9; i++) { | |
for(int j=0; j<9; j++) { | |
cin>>map[i][j]; | |
if(map[i][j]==0) { | |
vec.push_back({i,j}); | |
} | |
} | |
} | |
dfs(0,0); | |
} |
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