1_codeup_연습문제_동적할당

1402.cpp

#include <stdio.h>
#include <stdlib.h>

int main() {
    int i,n;
    scanf("%d",&n);
    //int *p = (int *)malloc(sizeof(int));
    int *p = (int *)malloc(sizeof(int)*n);
    for (i=0; i<n; i++) scanf("%d",p+i);
    for (i=(n-1); i>=0; i--) printf("%d ",*(p+i));
    free(p);
    return 0;
}

1440.cpp

#include <stdio.h>
#include <stdlib.h>

int main(){
    int n;
    scanf("%d", &n);
    int *p = (int*)malloc(sizeof(int)*n);
    //int *p = (int*)malloc(sizeof(int));
    for (int i = 0; i < n; i++)
        scanf("%d", p + i);
    for (int i = 0; i < n; i++){
        printf("%d: ", i+1);
        for (int j = 0; j < n; j++){
            if (i == j) continue;
            else if (*(p + i) > *(p + j)) printf("> ");
            else if (*(p + i) < *(p + j)) printf("< ");
            else printf("= ");
        }
        printf("\n");
    }
    free(p);
}

1810.cpp

#include <stdio.h>
#include <malloc.h>

int main()
{
    int a,b;
    //char *str=(char*)malloc(sizeof(int));
    char *str=(char*)malloc(sizeof(int)*100);
    scanf("%s",str);
    scanf("%d %d",&a,&b);
    for(int i=a-1;i<b;i++)
        printf("%c",*(str+i));
    free(str);
    return 0;
}