Created
March 24, 2015 23:40
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#include <cstdio> | |
int main(){ | |
int n; | |
while(true){ // varias entradas | |
scanf("%d", &n); // leia o valor de n | |
if(n==0) break; // se n=0, acabou a entrada | |
int pares=0; // declare pares=0 | |
for(int i=1; i<=n; i++){ // para cada tipo de vareta | |
int c, v; | |
scanf("%d %d", &c, &v); // leia a quantidade de varetas desse comprimento | |
pares+=(v/2); // e adicione a pares a quantidade de pares desse comprimento de vareta que você pode formar | |
} | |
printf("%d\n", pares/2); // imprima a resposta | |
} | |
return 0; | |
} |
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