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- #include <iostream>
- using namespace std;
- int main(){
- int size = 3;
- int m[size][size];
- for(int i=0;i<size;++i)
- for(int j=0;j<size;++j)
- std::cin>>m[i][j];
- for(int i=0;i<size;++i){
- int buf;
- buf=m[i][i];
- m[i][i]=m[i][(size-1)-i];
- m[i][(size-1)-i]=buf;
- }
- for(int i=0;i<size;++i){
- for(int j=0;j<size;++j)
- std::cout<<m[i][j]<<' ';
- std::cout<<std::endl;
- }
- return 0;
- }
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