Stuff

#include <stdio.h>#include <malloc.h>#include <stdlib.h>int *inp;int *ans;int n;int find_next_zero(void);void sub_till(int );int main(){    int i, index = 0;        scanf("%d", &n);        inp = (int *)(malloc(sizeof(int)*n));    ans = (int *)(malloc(sizeof(int)*n));    for(i = 0 ; i < n ; i++)        scanf("%d", &inp[i]);        for(i = n ; i > 0 ; i--) {        index = find_next_zero();        if(index == -1) {            printf("-1");            exit(0);        } else {            ans[index] = i;            sub_till(index);        }    }        for(i = 0 ; i < n ; i++)        printf("%d ", ans[i]);            return 0;}int find_next_zero(void){    int i;    for(i = 0 ; i < n ; i++)         if(inp[i] == 0)             return i;    return -1;}void sub_till(int index){    int i;    for(i = 0 ; i <= index ; i++)        inp[i] = inp[i] - 1;}