三、运算符与优先级

#include <stdio.h>
int main() 
{
    int a, b;
    scanf("%d %d", &a, &b); 
    printf("%d\n", a + b);
    return 0;
}

#include <stdio.h>

int main() {
    long long c, d;  
    scanf("%lld %lld", &c, &d);
    printf("%.3f%%\n", (double)d / c * 100);
    return 0;
}

#include <stdio.h>

int main() {
    int a,b;
    
    scanf("%d %d", &a,&b);
   
    printf("%d %d\n", a / b, a % b);
    return 0;
}

#include<stdio.h>
int main()
{int a;
scanf("%d",&a);
printf("%d\n",a%10);
return 0;}

#include <stdio.h>
#include <stdlib.h> 
int main() {
    long long a; 
    scanf("%lld", &a);
    printf("%lld\n", llabs(a) / 10 % 10);
    return 0;
}

#include <stdio.h>
#include <math.h> 

int main() {
    long long n;
    scanf("%lld", &n);

    printf("%lld\n", (long long)sqrt(n));
    return 0;
}