#include <stdio.h>
void calculate(int (*a)[4]);
int main(void) {
int a[3][4] = {{1,2,3,4}, {5,6,7,8}, {9,10,11,12}};
calculate(a);
return 0;
}
void calculate(int (*a)[4]){
int sum=0;
for(int i=0; i<3; i++){
for(int j=0; j<4; j++){
sum = sum + a[i][j];
}
}
}
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