10 lines
158 B
C
10 lines
158 B
C
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#include <stdio.h>
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int main(){
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int a, b, c;
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float averege;
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scanf("%d%d%d", &a, &b, &c);
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averege = (a + b + c) / 3.;
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printf("%.2f\n", averege);
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return 0;
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}
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