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- #include <stdio.h>
- #include <math.h>
- int stepeni(int i, int j) {
- if(j==0) return 1;
- return i*stepeni(i,j-1);
- }
- int main() {
- int n,i,j;
- double zbir=0.0;
- scanf("%d",&n);
- for(i=1; i<=n; i++) {
- for(j=0; j<=i; j++) {
- zbir+=sqrt((double)stepeni(i,j));
- }
- }
- printf("%.2f",zbir);
- return 0;
- }
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