Issue in adding/displaying multi-dimensional char array in C -

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i having difficulty in adding , displaying values in multi-dimensional char array. accepting number of days , various expense amount user , wish add them in char array.. daywise[day_1][total_expense_on_that_day];

here code wrote, kindly tell me went wrong.

char daywise[days_count][opening_bal_bk][15]; // multidimensional array printf("\nnumber of days: %d\n", days_count);  for(i = 1; <= days_count; i++) {     printf("\n\t");      printf("\nopening balance day %d is: %d", i, opening_bal_bk);     printf("\n\t");      printf("day %d \n\t", i);     printf("---------------");      printf("\n\tfood: ");     food_amount = num_valid();      while(food_amount > opening_bal_bk) {         printf("food amount exceeding balance,enter again!");         printf("\n\tfood: ");         food_amount = num_valid();     }     opening_bal_bk -= food_amount;      printf("\n\ttravel: ");     travel_amount = num_valid();     while(travel_amount > opening_bal_bk) {         printf("travel amount exceeding balance,enter again!");         printf("\n\ttravel: ");         travel_amount = num_valid();     }     opening_bal_bk -= travel_amount;        daywise[i][opening_bal_bk]; //adding array here


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