An algorithm has been written to control an automated parcel labelling system at a distribution centre based on the package weight category selected.

Figure 1

1      category ← USERINPUT
2      IF category = 'heavy' THEN
3          weight_limit ← 80
4      ELSE IF category = 'medium' THEN
5          wt_limit ← 40
6      ELSE IF category = 'light' THEN
7          weight_limit ← 15
8      ELSE
9          OUTPUT 'invalid category'
10     ENDIF
11     FOR i ← 1 TO weight_limit STEP 5
12         IF i < 30 THEN
13             PRINT_LABEL('standard')
14         ELSE
15             PRINT_LABEL('heavy_duty')
16         ENDIF
17     ENDFOR