#include <iostream>
#include <algorithm>
using namespace std;
int main()
{
int n(0),m(0);
cin >> n >> m;
int matrix[n][m];
char arr[n][m];
arr[0][0] = '0';
for(int i = 0;i<n;++i){
for(int j = 0;j<m;++j){
cin >> matrix[i][j];
if(!i && !j)continue;
if(!i){
matrix[i][j] += matrix[i][j-1];
arr[i][j] = 'R';
}
if(!j){
matrix[i][j] += matrix[i-1][j];
arr[i][j] = 'D';
if(i && j){
matrix[i][j] += max(matrix[i-1][j],matrix[i][j-1]);
if(max(matrix[i-1][j],matrix[i][j-1]) == matrix[i-1][j])arr[i][j] = 'D';
else arr[i][j] = 'R';
cout << matrix[n-1][m-1];
cout << "\n";
string s;
for(int i = n-1;;){
for(int j = m-1;;){
if(arr[i][j] == '0'){
reverse(s.begin(),s.end());
s.erase(0,1);
cout << s << endl;
return 0;
s.push_back(arr[i][j]);
s.push_back(' ');
if(arr[i][j] == 'R'){
j -= 1;
continue;
if(arr[i][j] == 'D'){
i -= 1;
cout << endl;
Объяснение:
#include <fstream>
#include <random>
ofstream fout("f.txt");
random_device rd;
mt19937 mer(rd());
for(int i = 0 ; i < 10 ; ++i)
fout << mer() << ' ';
fout.close();
ofstream gout("g.txt");
ifstream fin("f.txt");
for (int i = 0 ; i < 10 ; ++i)
unsigned int temp;
fin >> temp;
if( temp % 2 == 0 )
gout << temp << ' ';
cout << temp << ' ';
fin.close();
gout.close();
#include <iostream>
#include <algorithm>
using namespace std;
int main()
{
int n(0),m(0);
cin >> n >> m;
int matrix[n][m];
char arr[n][m];
arr[0][0] = '0';
for(int i = 0;i<n;++i){
for(int j = 0;j<m;++j){
cin >> matrix[i][j];
if(!i && !j)continue;
if(!i){
matrix[i][j] += matrix[i][j-1];
arr[i][j] = 'R';
}
if(!j){
matrix[i][j] += matrix[i-1][j];
arr[i][j] = 'D';
}
if(i && j){
matrix[i][j] += max(matrix[i-1][j],matrix[i][j-1]);
if(max(matrix[i-1][j],matrix[i][j-1]) == matrix[i-1][j])arr[i][j] = 'D';
else arr[i][j] = 'R';
}
}
}
cout << matrix[n-1][m-1];
cout << "\n";
string s;
for(int i = n-1;;){
for(int j = m-1;;){
if(arr[i][j] == '0'){
reverse(s.begin(),s.end());
s.erase(0,1);
cout << s << endl;
return 0;
}
s.push_back(arr[i][j]);
s.push_back(' ');
if(arr[i][j] == 'R'){
j -= 1;
continue;
}
if(arr[i][j] == 'D'){
i -= 1;
continue;
}
}
}
cout << endl;
return 0;
}
Объяснение:
#include <iostream>
#include <fstream>
#include <random>
using namespace std;
int main()
{
ofstream fout("f.txt");
random_device rd;
mt19937 mer(rd());
for(int i = 0 ; i < 10 ; ++i)
fout << mer() << ' ';
fout.close();
ofstream gout("g.txt");
ifstream fin("f.txt");
for (int i = 0 ; i < 10 ; ++i)
{
unsigned int temp;
fin >> temp;
if( temp % 2 == 0 )
gout << temp << ' ';
cout << temp << ' ';
}
fin.close();
gout.close();
}