OJ Board

got an AC


#include<stdio.h>

int main()
{
int test_case,frequency,amplitude,i,j,k,m;

scanf("%d",&test_case);
printf("\n");
for(i=0;i<test_case;i++)
{
scanf("%d",&amplitude);
scanf("%d",&frequency);
printf("\n");

for(m=0;m<frequency;m++)
{
for(j=1;j<=amplitude;j++)
{
for(k=0;k<j;k ...

got WA


#include<stdio.h>

int main()
{
int test_case,i;
long long int a,b,c;

scanf("%d",&test_case);

for(i=1;i<=test_case;i++)
{
scanf("%llu %llu %llu",&a,&b,&c);

if(a>=b+c || b>=a+c || c>=a+b || a<=0 || b<=0 || c<=0)
printf("case %d: Invalid\n",i);
else if(a==b && b==c)
printf("case ...

why getting WA? :(


#include<stdio.h>

int main()
{
int C,i,j,count;
int grade[1002];
float percentage,sum,avrg_grade,N;

scanf("%d",&C);

for(i=0;i<C;i++)
{
sum=0;
count=0;
avrg_grade=0;

scanf("%d",&N);

for(j=0;j<N;j++)
{
scanf("%d",&grade[j]);
}
for(j=0;j<N;j++)
{
sum=sum ...