Compilare: main.cpp: In function 'int main()': main.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v.size()-1;i++) ~^~~~~~~~~~~ main.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<v.size();j++) ~^~~~~~~~~ main.cpp:49:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<v.size();k++) ~^~~~~~~~~ main.cpp:59:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v.size()-2;i++) ~^~~~~~~~~~~ main.cpp:60:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=i+1;j<v.size()-1;j++) ~^~~~~~~~~~~ main.cpp:62:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=j+1;k<v.size();k++) ~^~~~~~~~~ main.cpp:36:9: warning: unused variable 'all' [-Wunused-variable] int all,x,x1,n,x2,x3; ^~~ main.cpp:36:20: warning: unused variable 'x2' [-Wunused-variable] int all,x,x1,n,x2,x3; ^~ main.cpp:36:23: warning: unused variable 'x3' [-Wunused-variable] int all,x,x1,n,x2,x3; ^~ main.cpp:34:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("patrulatere.in","r",stdin); ^ main.cpp:35:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("patrulatere.out","w",stdout); ^ main.cpp:37:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:40:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&x1); ^