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14 lines
300 B
C
14 lines
300 B
C
#include <stdio.h>
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#include <math.h>
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long long newAvg(double *arr, size_t szArray, double navg)
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{
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double sum = 0.0;
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for (size_t i = 0; i < szArray; sum += arr[i++]);
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long long result = (long long) ceil(navg * (szArray + 1) - sum);
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if (result <= 0) return -1;
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else return result;
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}
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