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https://github.com/Kiritow/OJ-Problems-Source.git
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18 lines
251 B
C++
18 lines
251 B
C++
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#include <stdio.h>
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int main()
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{
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double a,sum;
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int n, i,ca;
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scanf("%d", &ca);
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while (ca--) {
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scanf("%d", &n);
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sum = 0;
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for (i = 0; i < n; ++i) {
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scanf("%lf", &a);
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sum += a;
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}
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printf("The average M = %.10lf.\n", sum / n);
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}
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return 0;
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}
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