Index: aoc2024.c
==================================================================
--- aoc2024.c
+++ aoc2024.c
@@ -60,18 +60,10 @@
             case 2: calibrationtotal += testvalue;
                     __attribute__((fallthrough));
             case 3: calibration3total += testvalue;
                     break;
         }
-        #if 0
-        if (canbetrue(testvalue, number, nnumber)) {
-            calibrationtotal += testvalue;
-        }
-        if (canbetrue3(testvalue, number, nnumber)) {
-            calibration3total += testvalue;
-        }
-        #endif
         line = strtok(NULL, "\n");
     }
     printf("The calibration total is {%llu}.\n", calibrationtotal);
     printf("The calibration total with three operators is {%llu}.\n", calibration3total);
 }
@@ -284,22 +276,10 @@
 
 void aoc202404(char *data, size_t len) {
     (void)len; // unused argument
     // assume data is well-formatted and has the same number of rows and columns
     unsigned size = strchr(data, '\n') - data;
-    #if 0 // check assumption
-    printf("data has %u cols, first three rows start with %c%c, %c%c, and %c%c.\n",
-          size, data[0], data[1],
-          data[1*(size+1)], data[1*(size+1)+1],
-          data[2*(size+1)], data[2*(size+1)+1]);
-    printf("ends with %c%c.\n", data[(size-1)*(size+1) + size-2], data[(size-1)*(size+1)+size-1]);
-    printf("data has %u cols, first three rows start with %c%c, %c%c, and %c%c.\n",
-          size, data[linearize2d(size+1, 0, 0)], data[linearize2d(size+1, 0, 1)],
-          data[linearize2d(size+1, 1, 0)], data[linearize2d(size+1, 1, 1)],
-          data[linearize2d(size+1, 2, 0)], data[linearize2d(size+1, 2, 1)]);
-    printf("ends with %c%c.\n", data[linearize2d(size+1, size-1, size-2)], data[linearize2d(size+1, size-1, size-1)]);
-    #endif
     unsigned xmascount = 0, Xmascount = 0;
     for (unsigned row = 0; row < size; row++) {
         for (unsigned col = 0; col < size; col++) {
             xmascount += xmasat(data, size, row, col);
             if ((1 <= row) && (row < size - 1) && (1 <= col) && (col < size - 1)) {