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/*
* Read an array of n int from stdin and print its sum to stdout
* This is free and unencumbered software released into the public domain.
*/
#include <stdio.h>
#include <stdlib.h>
int sum(int n, int *a)
{
int s = 0;
while (n--)
s += a[n];
return s;
}
int main()
{
int n;
scanf("%d", &n);
int *a = malloc(n * sizeof(int));
for (int i = 0; i < n; ++i)
scanf("%d", a + i);
printf("%d\n", sum(n, a));
return 0;
}
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