c++ - The values are getting stored in "arr" correctly but garbage values are getting stored in "str". I do not understand why -
the values getting stored in "arr" correctly garbage values getting stored in "str". not understand why. checked many times , seems right me.
#include <iostream> using namespace std; int main() { int test,n,arr[50],str[20][20],i,j,k; t = 0; j = 0; cin>>test; //test cases while(test>0){ cin>>n; //number of elements in test case for(i=0;i<n;i++) cin>>arr[i]; //array of elements for(i=0;i<n;i++){ cout<<"arr = "<<arr[i]<<"\n"; str[i][j] = arr[i]; // storing arr in str } cout<<"\n"; str[i+1][j] = 0; j++; test--; } for(i=0;i<j;i++){ for(k=0;str[i][k]!=0;k++) cout<<<<str[i][k]; // printing str cout<<"\n"; } return 0; }
there lot of mistakes main 1 indexing of 2d array
a 2 dimensional array arr [row] [column] , have been using arr [column] [row]
str[i][j] = arr[i]; see u doing storing number @ every row
maybe image clear things out
#include <iostream> using std :: cin ; using std :: cout ; using std :: endl ; int main() { int test,n,arr[50],str[20][20],i,j,k; j = 0; cin>>test; //test cases int temp = test ; while(test>0) { cin>>n; //number of elements in test case for(i=0;i<n;i++) cin>>arr[i]; //array of elements for(i=0;i<n;i++) { cout<<"arr = "<<arr[i]<<"\n"; str[j][i] = arr[i]; // storing arr in str } str[j][i] = '\0'; cout<<"\n"; j++; test--; } ( int = 0 ; < temp ; i++ ) { j=0 ; while ( str[i][j] != '\0') { cout<<str[i][j]; // printing str j++ ; } cout<<"\n"; } cin.ignore(5) ; return 0; }
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