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 ‘int main()’: user.cpp:235:31: 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:236:33: 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:237:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&n); ^ user.cpp:240:30: 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:242:32: 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:244:32: 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:246:32: 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:248:32: 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:250:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&k); ^ user.cpp:253:38: 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:155:27: warning: array subscript is above array bounds [-Warray-bounds] m1[1]=m2[1]=m1[2]=m2[2]=inf; ^ user.cpp:155:21: warning: array subscript is above array bounds [-Warray-bounds] m1[1]=m2[1]=m1[2]=m2[2]=inf; ^ user.cpp:220:14: warning: array subscript is above array bounds [-Warray-bounds] if(m1[2]>dist[it->first][it->second]){ ^ user.cpp:221:14: warning: array subscript is above array bounds [-Warray-bounds] m2[2]=m1[2];