Compilare: user.cpp: In function ‘void umple()’: user.cpp:34:13: warning: unused variable ‘i’ [-Wunused-variable] int x,y,i,j; ^ user.cpp:34:15: warning: unused variable ‘j’ [-Wunused-variable] int x,y,i,j; ^ user.cpp: In function ‘void cozi()’: user.cpp:129:29: warning: variable ‘x2’ set but not used [-Wunused-but-set-variable] int i,j,x,y,m1[2],m2[2],x2,y2; ^ user.cpp:129:32: warning: variable ‘y2’ set but not used [-Wunused-but-set-variable] int i,j,x,y,m1[2],m2[2],x2,y2; ^ user.cpp: In function ‘int main()’: user.cpp:210:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ai.in","r",stdin); ^ user.cpp:211:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ai.out","w",stdout); ^ user.cpp:212:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&n); ^ user.cpp:215:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&t.x,&t.y); ^ user.cpp:217:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&s1.y,&s1.x); ^ user.cpp:219:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&s2.y,&s2.x); ^ user.cpp:221:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&r1.y,&r1.x); ^ user.cpp:223:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&r2.y,&r2.x); ^ user.cpp:225:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&k); ^ user.cpp:228:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&aux.y,&aux.x); ^ user.cpp: In function ‘void cozi()’: user.cpp:130:27: warning: array subscript is above array bounds [-Warray-bounds] m1[1]=m2[1]=m1[2]=m2[2]=inf; ^ user.cpp:130:21: warning: array subscript is above array bounds [-Warray-bounds]