切换VS如果不比较时哪个更快=？

Question

我知道，如果什么时候谈论像这样的事情

，通常情况下开关案例会比其他情况更快

if (a==0) statement1;
else if (a==1) statement2;
else if (a==2) statement3;
else statement4;

在这种情况下，编译器应该更容易有效地执行

switch (a){
case 0:
statement1;
break;
case 1:
statement2;
break;
case 2:
statement3;
break;
default:
statement4;
}

但我不知道下一个代码有什么用处：

#include <stdio.h>
int main(){
    int value;
    puts("introduce a value (0-1000)");
    scanf("%i" , &value);
    if(value > 400) printf("%i is greater than 400", value);
    else if (value >300) printf("%i is smaller than 401 and greater than 300", value);
    else if (value >200) printf("%i is smaller than 301 and greater than 200", value);
    else if (value > 100) printf("%i is smaller than 201 and greater than 100", value);
    else printf("%i is smaller than 101", value);
    return 0;
}

它比这个更快吗？

#include <stdio.h>
#include <limits.h>
int main(){
    int value;
    puts("introduce a value (0-1000)");
    scanf("%i" , &value);
    switch(value){
        case 401 ... INT_MAX:
        printf("%i is greater than 400", value);
        break;
        case 301 ... 400:
        printf("%i is samller than 401 and greater than 300", value);
        break;
        case 201 ... 300:
        printf("%i is samller than 301 and greater than 200", value);
        break;
        case 100 ... 200:
        printf("%i is samller than 201 and greater than 100", value);
        break;
        default:
        printf("%i is samller than 101", value);
    }
}