Algoritmo soma de fatoriais

#include <stdio.h>

#include <stdlib.h>

long long unsigned calcfat(int n){

int i;

long long unsigned fat=n;

if(n==0) return 1;

for(i=1;i<n;i++){

fat *= i;

}

return fat;

}

int main(){

int i, x, y;

long long unsigned n[25];

for(i=0;i<=20;i++){

n[i] = calcfat(i);

}

while(scanf(" %d %d", &x, &y)!=EOF){

printf("%llu\n",n[x]+n[y]);

}

return 0;

}

Algoritmo novo

#include <stdio.h>

#include <string.h>

#include <math.h>

int main(){

int T, i, tam, num;

long long unsigned int N = 0, P = 0;

char NK[30];

scanf(" %d" , &T);

while(T>0){

scanf("%d%s", &num , NK);

tam = strlen(NK);

N=num;

i = 1;

while(((num-(tam*i))>0) ){

P = (num-(tam*i));

N = N*P;

i++;

}

printf("%llu\n" , N );

T--;

}

return 0;

}

#include <stdio.h>

float p(int i, int j, float S){

if(i<=99) return (S + ((i+2)/(j+1)) + p(i+2,j+1, S)); else return (S);

}

int main()

{

printf("%0.0f" , p(1,1,0));

return 0;

}

#include <stdio.h>

...