Compilare: user.cpp: In function ‘void read()’: user.cpp:31:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &m, &n, &p); ^ user.cpp:35:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &A[i][j]); ^ user.cpp: In function ‘void solve()’: user.cpp:119:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &dx, &dy); ^ user.cpp: In function ‘int main()’: user.cpp:143:27: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(INFL, "r", stdin); ^ user.cpp:144:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(OUTFL, "w", stdout); ^ user.cpp: In function ‘void solve()’: user.cpp:133:25: warning: ‘cnt’ may be used uninitialized in this function [-Wmaybe-uninitialized] cnt += c; ^ user.cpp:132:18: warning: ‘ans’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(aux == ans) ^