Algorithm---Sequential print matrix

Sequential Print matrix

Ideas

Reference Code

#include <iostream>using namespacestd;voidPrintnumasclockwise (inta[][4],intRowintCol) {    if(Row <1|| Col <1)        return; intup =0, down = row-1, left =0, right = col-1; inti =0;  while(Up <= down && left <=Right ) {         for(i = left, I <= right; + +)i) cout<< A[up][i] <<" "; ++Up ;  for(i = up; I <=; + +)i) cout<< A[i][right] <<" "; --Right ;  for(i = right; I >= left;--i) cout<< A[down][i] <<" "; --Down ;  for(i = down; I >= up;--i) cout<< A[i][left] <<" "; ++Left ; } cout<<Endl;} intMain () {inta[][4] = {{1,2,3,4}, {5,6,7,8}, {9,Ten, One, A}, { -, -, the, -}}; cout<<sizeof(a)/sizeof(int) <<Endl; Printnumasclockwise (A,4,4);};

Two-dimensional arrays can be replaced by one-dimensional

#include <iostream>using namespacestd;voidPrintnumasclockwise (int*a,intRowintCol) {    if(Row <1|| Col <1)        return; intup =0, down = row-1, left =0, right = col-1; inti =0;  while(Up <= down && left <=Right ) {         for(i = left, I <= right; + +)i) cout<< A[up * col + i] <<" "; ++Up ;  for(i = up; I <=; + +)i) cout<< A[i * col + right] <<" "; --Right ;  for(i = right; I >= left;--i) cout<< A[down * col + i] <<" "; --Down ;  for(i = down; I >= up;--i) cout<< A[i * col + left] <<" "; ++Left ; } cout<<Endl;} intMain () {inta[][4] = {{1,2,3,4}, {5,6,7,8}, {9,Ten, One, A}, { -, -, the, -}}; cout<<sizeof(a)/sizeof(int) <<Endl; Printnumasclockwise ((int*) A,4,4);};

Attention

Pay attention to the range of discriminant parameters

if 1 1 )        return;

Results

 - 1 2 3 4 8  A  -  the  -  - 9 5 6 7  One Ten

Algorithm---Sequential print matrix