Compilare: user.c: In function ‘main’: user.c:137:7: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘char *’ [-Wformat=] fscanf(in, "%d", &ma[i][j]); ^ user.c:134:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d%d", &n, &m, &w, &h); ^ user.c:137:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &ma[i][j]); ^ user.c: In function ‘calcs’: user.c:42:22: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dr = 1, i, di, l, c, x; ^ user.c:42:25: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dr = 1, i, di, l, c, x; ^ user.c:89:30: warning: ‘di’ may be used uninitialized in this function [-Wmaybe-uninitialized] r[ru][poz[dr - 1]] = abso(i - poz[dr - 1] - di); ^ user.c:86:7: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] i += di; ^