boxes.cpp: In function 'long long int delivery(long long int, long long int, long long int, long long int*)':
boxes.cpp:10:15: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
10 | for (int i = k; i<n; i++)pref[i]=positions[i]+pref[i-k];
| ^
boxes.cpp:11:16: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
11 | for (int i = n-1; i>n-k-1; i--)suf[i]=l-positions[i];
| ~^~
boxes.cpp:12:18: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
12 | for (int i = n-k-1; i>=0; i--)suf[i]=l-positions[i]+suf[i+k];
| ~~~^~
/usr/bin/ld: /tmp/ccCOER6C.o: in function `main':
grader.c:(.text.startup+0x1ef): undefined reference to `delivery(int, int, int, int*)'
collect2: error: ld returned 1 exit status