Compilare: user.cpp: In function ‘int main()’: user.cpp:20:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘char*’ [-Wformat=] scanf("%d",&a[i][j]); ^ user.cpp:12:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("go.in","r",stdin); ^ user.cpp:13:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("go.out","w",stdout); ^ user.cpp:16:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ user.cpp:20:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^ user.cpp:77:35: warning: ‘soly’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d %d\n",solx-1,soly-1); ^ user.cpp:77:35: warning: ‘solx’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:56:34: warning: ‘fy’ may be used uninitialized in this function [-Wmaybe-uninitialized] mat[fx][fy] += sf + 1; ^ user.cpp:56:34: warning: ‘fx’ may be used uninitialized in this function [-Wmaybe-uninitialized]