Compilare: main.cpp: In function 'int main()': main.cpp:59:22: warning: integer overflow in expression [-Woverflow] maxim = 0 - 1000 * 10000000 - 1; ~~~~~^~~~~~~~~~ main.cpp:116:39: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=] printf("%lld %lld", maxim, nrmaxim); ^ main.cpp:116:39: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'int' [-Wformat=] main.cpp:55:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dreptunghiuri3.in","r", stdin); ^ main.cpp:56:46: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dreptunghiuri3.out","r", stdout); ^ main.cpp:58:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n ,&m, &k); ^ main.cpp:62:79: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d", &v[i].xs, &v[i].ys, &v[i].xd, &v[i].yj, &v[i].val); ^ main.cpp: In function 'int cbx(int, int)': main.cpp:31:12: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] return last; ^~~~ main.cpp: In function 'int cby(int, int)': main.cpp:50:12: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] return last; ^~~~ main.cpp: In function 'int main()': main.cpp:109:29: warning: 'nrmaxim' may be used uninitialized in this function [-Wmaybe-uninitialized] nrmaxim += (normix[i + 1] - normix[i]) * (normiy[j + 1] - normiy[j]); ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:92:36: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] mat[x1][y2 + 1] -= v[i].val; ^ main.cpp:91:25: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] mat[x2 + 1][y1] -= v[i].val; ~~~~~~~~~~~~~~~~^~~~~~~~~~~ main.cpp:91:36: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] mat[x2 + 1][y1] -= v[i].val; ^ main.cpp:90:29: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] mat[x1][y1] += v[i].val; ^~~