Compilare: main.cpp: In function 'int main()': main.cpp:212:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;j<v[tp].size();j++) ~^~~~~~~~~~~~~ main.cpp:223:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j==v[tp].size()) ~^~~~~~~~~~~~~~ main.cpp:97:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("elicoptere.in","r",stdin); ^ main.cpp:98:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("elicoptere.out","w",stdout); ^ main.cpp:99:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&p); ^ main.cpp:100:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&k); ^ main.cpp:104:55: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d %d %d",&x1,&y1,&x2,&y2,&x3,&y3); ^