Revise paste Untitled

#include <iostream>

using namespace std;
int dp[100][100];
int matrica[100][100];
int x, y;
pair<int, int> path[100][100];
int rec(int i, int j){
    if((i==x-1)and(j==y-1)){
        path[i][j] = make_pair(-1, -1);
        return(matrica[i][j]);
    }

if(dp[i][j]!=-1){
        return(dp[i][j]);
    }

int result=0;
    int down = 0, right = 0;
    if(i+1<x){
       down  = rec(i+1, j)+matrica[i][j];
    }
    if(j+1<y){
        right = rec(i, j+1)+matrica[i][j];
    }
    result = max(down, right);
    if(down > right) {
        path[i][j] = make_pair(i + 1, j);
    }
    else {
        path[i][j] = make_pair(i, j + 1);
    }
    dp[i][j]=result;
    return(result);
}
int main()
{

cin>>x>>y;
for(int i=0; i<x; i++){
    for(int j=0; j<y; j++){
        cin>>matrica[i][j];
    }
}

for(int i=0; i<x; i++){
    for(int j=0; j<y; j++){
        dp[i][j]=-1;
    }
}
    cout<<rec(0, 0) << endl;
    for(pair<int, int> i = make_pair(0, 0); i != make_pair(-1, -1); i = make_pair(path[i.first][i.second].first, path[i.first][i.second].second)) {
        cout << i.first + 1 << " " << i.second + 1 << endl;
    }
}