Manhattan sightseeing

#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <inttypes.h>
uint64_t *x;
uint64_t *y;
uint64_t n;

uint64_t score(uint64_t my_x, uint64_t my_y){
    uint64_t maxs = 0;
    uint64_t nb = 0;
    for (uint64_t i = 0; i < n; i++){
         nb = labs(x[i] - my_x) + labs(y[i] - my_y);
         maxs = (nb > maxs) ? nb : maxs;
    }
    // printf("mins = %ld\n", maxs);
    return maxs;
}

int main() {
    if (scanf("%ld", &n) == 0)
        return EXIT_FAILURE;

    x = (uint64_t*) malloc(n * sizeof(uint64_t));
    y = (uint64_t*) malloc(n * sizeof(uint64_t));

    // main algo

    uint64_t minx = UINT64_MAX;
    uint64_t miny = UINT64_MAX;
    uint64_t maxx = 0;
    uint64_t maxy = 0;

    uint64_t tmpx, tmpy;
    for (uint64_t i = 0; i < n; i++){
        // printf("minx:%lu miny:%lu maxx:%lu maxy:%lu\n", minx, miny, maxx, maxy);
        if (scanf("%lu %lu", &tmpx, &tmpy) == 0)
            return EXIT_FAILURE;
        x[i] = tmpx + tmpy;
        y[i] = tmpx - tmpy;
        // printf("x:%ld y:%ld", x[i], y[i]);
        minx = (minx < x[i]) ? minx : x[i];
        miny = (miny < y[i]) ? miny : y[i];
        maxx = (maxx > x[i]) ? maxx : x[i];
        maxy = (maxy > y[i]) ? maxy : y[i];
        // printf("minx:%lu miny:%lu maxx:%lu maxy:%lu\n", minx, miny, maxx, maxy);
    }

    uint64_t midx = (minx + maxx) / 2;
    uint64_t midy = (miny + maxy) / 2;

    // printf("minx:%ld miny:%ld maxx:%ld maxy:%ld\n", minx, miny, maxx, maxy);

    // printf("%ld %ld\n", midx, midy);

    uint64_t resx = midx;
    uint64_t resy = midy;
    uint64_t mini = score(midx, midy);
    // printf("mins = %ld\n", mini);
    if (score(midx + 1, midy) < mini){
        mini = score(midx + 1, midy);
        // printf("bmins = %ld\n", mini);
        resx = midx + 1;
        resy = midy;
    }
    if (score(midx, midy + 1) < mini){
        mini = score(midx, midy + 1);
        // printf("cmins = %ld\n", mini);
        resx = midx;
        resy = midy + 1;
    }
    if (score(midx + 1, midy + 1) < mini){
        mini = score(midx + 1, midy + 1);
        // printf("dmins = %ld\n", mini);
        resx = midx + 1;
        resy = midy + 1;
    }

    printf("%ld %ld\n", (resx + resy)/2, (resx - resy)/2);


    return EXIT_SUCCESS;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: ACCEPTED

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

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Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: ACCEPTED

Test 10

Verdict: WRONG ANSWER

Test 11

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Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: WRONG ANSWER

Test 16

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Test 17

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Test 18

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Test 20

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Test 22

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Test 23

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Test 24

Verdict: WRONG ANSWER

Test 25

Verdict: ACCEPTED

Test 26

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Test 27

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Test 28

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Test 29

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Test 30

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Test 31

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Test 32

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Test 35

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Test 36

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Test 37

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Test 38

Verdict: ACCEPTED

Test 39

Verdict: WRONG ANSWER

Test 40

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Test 41

Verdict: WRONG ANSWER

Test 42

Verdict: ACCEPTED

Test 43

Verdict: WRONG ANSWER

Test 44

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Test 45

Verdict: WRONG ANSWER

Test 46

Verdict: WRONG ANSWER

Test 47

Verdict: ACCEPTED

Test 48

Verdict: ACCEPTED

Test 49

Verdict: WRONG ANSWER

Test 50

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Test 51

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Test 52

Verdict: ACCEPTED

Test 53

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Test 59

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Test 60

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Test 61

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Test 62

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Test 63

Verdict: ACCEPTED

Test 64

Verdict: WRONG ANSWER

Test 65

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Test 66

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Test 67

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Test 68

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Test 70

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Test 76

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Test 77

Verdict: WRONG ANSWER