#include<stdio.h>
int sum(){
int i, sum=0;
for(i=1; i<=100; i++){
sum+=i;
}
return sum;
}
int sum2(int m, int n){
int i, sum=0;
for(i=m; i<=n; i++){
sum+=i;
}
return sum;
}
int sum3(int m, int n){
int i, sum=0;
for(i=m; i<=n; i++){
sum+=i;
}
return sum;
}
int main(int argc, const char *argv[])
{
int a = sum();
int b = sum2(1,2);
printf("The sum is %d\n", a);
printf("The sum is %d\n", b);
int begin = 5, end = 90;
int zz = sum3(begin, end);
printf("The sum from %d to %d is %d\n", begin, end, zz);
return 0;
}
最后修改于 2020-10-09 17:42:13
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