Compilare: user.cpp: In function ‘int main()’: user.cpp:36:29: warning: unused variable ‘p’ [-Wunused-variable] int test, i, j, k1, k2, p; ^ user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "lenes.in", "r", stdin ); ^ user.cpp:35:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "lenes.out", "w", stdout ); ^ user.cpp:37:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d%d%d", &test, &n, &m, &k1, &k2 ); ^ user.cpp:40:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d", &mat [i] [j] ); ^ user.cpp:123:96: warning: ‘s2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if ( ( j == j1 - 1 && ( s2 == 4 || s2 == 5 ) ) || ( j == j1 + 1 && ( s2 == 3 || s2 == 5 ) ) ) continue; ^ user.cpp:123:28: warning: ‘j1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if ( ( j == j1 - 1 && ( s2 == 4 || s2 == 5 ) ) || ( j == j1 + 1 && ( s2 == 3 || s2 == 5 ) ) ) continue; ^