Compilare: user.cpp: In function ‘int main()’: user.cpp:101:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kinetic.in","r",stdin); ^ user.cpp:102:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kinetic.out","w",stdout); ^ user.cpp:104:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&n,&m); ^ user.cpp:107:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&v[i].a,&v[i].b); ^ user.cpp:113:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d ",&x,&y,&t); ^ user.cpp: In function ‘int caut(int, int, int)’: user.cpp:94:13: warning: ‘cmij’ may be used uninitialized in this function [-Wmaybe-uninitialized] return q-mij+1; ^ user.cpp:56:21: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(v[mij].a+v[mij].b*t<y) ^