Compilare: user.cpp: In function ‘void RemoveEdge(int, int)’: user.cpp:41:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pointerX<g[nodeX].size()&&(seen[g[nodeX][pointerX]]==updates||color[g[nodeX][pointerX]]!=color[x]||g[nodeX][pointerX]==y)) ^ user.cpp:43:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pointerX<g[nodeX].size()){ ^ user.cpp:57:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pointerY<g[nodeY].size()&&(seen[g[nodeY][pointerY]]==updates||color[g[nodeY][pointerY]]!=color[y]||g[nodeY][pointerY]==x)) ^ user.cpp:59:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pointerY<g[nodeY].size()){ ^ user.cpp:35:92: warning: unused variable ‘left’ [-Wunused-variable] int leftX=1,rightX=1,leftY=1,rightY=1,nodeX,nodeY,pointerX=0,pointerY=0,ok=0,sonX,sonY,left,right,node,i,initial,other; ^ user.cpp:35:97: warning: unused variable ‘right’ [-Wunused-variable] int leftX=1,rightX=1,leftY=1,rightY=1,nodeX,nodeY,pointerX=0,pointerY=0,ok=0,sonX,sonY,left,right,node,i,initial,other; ^ user.cpp:35:103: warning: unused variable ‘node’ [-Wunused-variable] int leftX=1,rightX=1,leftY=1,rightY=1,nodeX,nodeY,pointerX=0,pointerY=0,ok=0,sonX,sonY,left,right,node,i,initial,other; ^ user.cpp:35:110: warning: unused variable ‘initial’ [-Wunused-variable] int leftX=1,rightX=1,leftY=1,rightY=1,nodeX,nodeY,pointerX=0,pointerY=0,ok=0,sonX,sonY,left,right,node,i,initial,other; ^ user.cpp:35:118: warning: unused variable ‘other’ [-Wunused-variable] int leftX=1,rightX=1,leftY=1,rightY=1,nodeX,nodeY,pointerX=0,pointerY=0,ok=0,sonX,sonY,left,right,node,i,initial,other; ^ user.cpp: In function ‘void read(int&)’: user.cpp:16:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^ user.cpp:24:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^ user.cpp: In function ‘int main()’: user.cpp:88:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("disconnect.in","r",stdin); ^ user.cpp:89:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("disconnect.out","w",stdout); ^ user.cpp:91:30: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^