Number of cases in an age range (allocation problems)

Question

The user will provide multiple (first given number) triple entries with the first number being 0, the second number being the number of disease cases at a given age (third number) or the first number being 1, the second and third numbers being the extremes of an age interval. I have to link "number of cases" with "age" and be able to edit this number of cases, have the possibility of receiving more cases for an age already cited previously (first number: 0). In addition, it will provide the numbers X and Y, so I have to print the number of cases related to the ages between X and Y (first number: 1). The language I’m using is C.

I tried that code:

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

int l[3], *list, n = 5;

void add(int X, int Y){
    while (Y < n){
        n = n * 2;
        list = realloc(list, n * sizeof(int));
    }
    list[Y] += X;
}

void consult(int X, int Y){
    int print = 0;
    for (int k = X; k <= Y; ++k){
        print += list[k];
    }
    printf("%d\n", print);
}

int main() {
    int P;
    scanf("%d", &P);
    list = (int*)calloc(n, sizeof(int));
    for (int i = 0; i < P; ++i){
        for (int j = 0; j < 3; ++j){
            scanf("%d", &l[j]);
        }
        if (l[0] == 0){
            add(l[1],l[2]);
        } else {
            consult(l[1],l[2]);
        }
    }
    free(list);
    return 0;
}

In the example:

20
0 194 9
1 7 41
0 102 38
1 30 43
0 22 49
1 34 56
1 15 20
1 34 57
1 34 51
0 128 39
0 97 57
0 114 25
0 10 82
0 127 35
1 66 164
0 60 85
0 155 48
1 60 186
1 10 384
0 166 950

it is running correctly. However in the example:

40
0 151 25
0 5 3
0 99 1
0 109 14
0 115 15
0 110 1
0 191 2
0 94 9
1 11 13
1 25 31
1 1 33
1 14 26
0 49 31
1 28 33
1 18 34
1 16 23
1 28 38
1 13 26
1 2 5
1 17 29
0 132 8
1 21 24
0 137 0
1 0 13
1 8 26
1 12 20
0 22 63
1 5 8
1 24 70
1 51 61
1 36 40
0 164 42
1 55 70
0 134 112
0 71 105
0 101 7
0 17 67
1 56 252
0 172 363
0 18 188

is saying "maximum stack or memory size exceeded, or maybe invalid pointer (code 139)".

How can I correct that mistake?

Note: it is an obligation to start the vector with size 5 and, if the size is not sufficient, you have to double the previous memory capacity until the size is sufficient.