Compilare: main.cpp: In function 'void solve(int, int)': main.cpp:23:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<q[i].size();j++) ~^~~~~~~~~~~~ main.cpp:40:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<qn[j].size();k++) ~^~~~~~~~~~~~~ main.cpp:58:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<qn[j].size();k++) ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("razbunare.in","r",stdin); ^ main.cpp:68:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("razbunare.out","w",stdout); ^ main.cpp:70:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&l,&q1); ^ main.cpp:71:76: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=l;i++) scanf("%d%d%d%d",&v[i].x,&v[i].y,&v[i].c,&v[i].r); ^ main.cpp:74:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&x,&y,&a,&b); ^