Compilare: user.cpp: In function ‘void setFriends(int, int)’: user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:30:2: note: in expansion of macro ‘rep’ rep(i, nd[y].enemyList.size()) if(nd[y].enemyList[i] == x) { //already enemies ^ user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:39:3: note: in expansion of macro ‘rep’ rep(i, nd[x].enemyList.size()) { ^ user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:42:4: note: in expansion of macro ‘rep’ rep(j, nd[nd[x].enemyList[i]].enemyList.size()) { ^ user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:50:3: note: in expansion of macro ‘rep’ rep(i, nd[y].enemyList.size()) { ^ user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:52:4: note: in expansion of macro ‘rep’ rep(j, nd[nd[y].enemyList[i]].enemyList.size()) if(nd[nd[y].enemyList[i]].enemyList[j] == y) nd[nd[y].enemyList[i]].enemyList[j] = x; ^ user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:58:3: note: in expansion of macro ‘rep’ rep(i, nd[y].enemyList.size()) { ^ user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:60:4: note: in expansion of macro ‘rep’ rep(j, nd[nd[y].enemyList[i]].enemyList.size()) if(nd[nd[y].enemyList[i]].enemyList[j] == y) nd[nd[y].enemyList[i]].enemyList[j] = x; ^ user.cpp: In function ‘void setEnemies(int, int)’: user.cpp:11:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define rep(i,n) for(i=0;i<(n);i++) ^ user.cpp:76:2: note: in expansion of macro ‘rep’ rep(i, nd[y].enemyList.size()) { ^