#include <stdio.h>
//課題B-1: 1からnまでの和を求めるコードを完成させてください
int sum(int n){ int i,S=0;
for(i=1;i<=n;i++){
S=S+i;}
return S;
}
int main(void) {
int a,b;
a = 10;
b = sum(a);
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+Ci8v6Kqy6aGMQi0xOiAx44GL44KJbuOBvuOBp+OBruWSjOOCkuaxguOCgeOCi+OCs+ODvOODieOCkuWujOaIkOOBleOBm+OBpuOBj+OBoOOBleOBhAppbnQgc3VtKGludCBuKXsgaW50IGksUz0wOwpmb3IoaT0xO2k8PW47aSsrKXsgCglTPVMraTt9CiByZXR1cm4gUzsKfQoKaW50IG1haW4odm9pZCkgewoJaW50IGEsYjsKICAgIGEgPSAxMDsKICAgIGIgPSBzdW0oYSk7CiAgICBwcmludGYoIjHjgYvjgoklZOOBvuOBp+OBruWSjOOBryVkIiwgYSxiICk7CglyZXR1cm4gMDsKfQo=