求过程怎么算

Question

#include<stdio.h> void main() { int a[4][4]={{1,2,3,4},{5,6,7,8},{11,12,13,14},{15,16,17,18}}; int i=0,j=0,s=0; while(i++<4) { if(i==2||i==4) continue; j=0; do { s+=a[i][j];j++;} while(j<4); } printf("%d\n",s); }