Compilare: user.cpp: In function ‘int main()’: user.cpp:8:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("magic2.in", "r", stdin); ^ user.cpp:9:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("magic2.out", "w", stdout); ^ user.cpp:11:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:16:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i][j]); ^ user.cpp:58:50: warning: array subscript is above array bounds [-Warray-bounds] printf("%d %d %d %d\n", l[1], c[1], l[1], c[2]); ^ user.cpp:60:26: warning: array subscript is above array bounds [-Warray-bounds] s1[++r] = (s - col[c[2]]) + a[l[1]][c[2]]; ^ user.cpp:62:34: warning: array subscript is above array bounds [-Warray-bounds] printf("\n%d %d", s1[1], s1[2]); ^ user.cpp:68:50: warning: array subscript is above array bounds [-Warray-bounds] printf("%d %d %d %d\n", l[1], c[1], l[2], c[1]); ^ user.cpp:70:37: warning: array subscript is above array bounds [-Warray-bounds] s1[++r] = (s - col[c[1]]) + a[l[2]][c[1]]; ^ user.cpp:72:34: warning: array subscript is above array bounds [-Warray-bounds] printf("\n%d %d", s1[1], s1[2]); ^ user.cpp:80:20: warning: array subscript is above array bounds [-Warray-bounds] s1[++r] = a[l[2]][c[2]] + s - lin[l[2]]; ^ user.cpp:80:26: warning: array subscript is above array bounds [-Warray-bounds] s1[++r] = a[l[2]][c[2]] + s - lin[l[2]]; ^ user.cpp:82:33: warning: array subscript is above array bounds [-Warray-bounds] printf("%d %d", s1[1], s1[2]); ^ user.cpp:86:26: warning: array subscript is above array bounds [-Warray-bounds] s1[++r] = a[l[1]][c[2]] + s - lin[l[1]]; ^ user.cpp:87:20: warning: array subscript is above array bounds [-Warray-bounds] s1[++r] = a[l[2]][c[1]] + s - lin[l[2]]; ^ user.cpp:89:33: warning: array subscript is above array bounds [-Warray-bounds] printf("%d %d", s1[1], s1[2]); ^