Compilare: user.cpp: In function ‘int main()’: user.cpp:35:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(love.a<v[1].size() && v[1][love.a].fi<=d) ^ user.cpp:37:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(love.b<v[2].size() && v[2][love.b].fi<=d) ^ user.cpp:39:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(love.c<v[3].size() && v[3][love.c].fi<=d) ^ user.cpp:41:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(love.d<v[4].size() && v[4][love.d].fi<=d) ^ user.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(love.a<v[1].size()) ^ user.cpp:50:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(love.b<v[2].size()) ^ user.cpp:57:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(love.c<v[3].size()) ^ user.cpp:64:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(love.d<v[4].size()) ^ user.cpp:72:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=v[1].size();++i) ^ user.cpp:73:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<=v[2].size();++j) ^ user.cpp:74:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<=v[3].size();++k) ^ user.cpp:75:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int p=0;p<=v[4].size();++p) ^ user.cpp:77:65: warning: narrowing conversion of ‘i’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push_back({i,j,k,p,dp[i][j][k][p]}),dp[i][j][k][p]=0; ^ user.cpp:77:65: warning: narrowing conversion of ‘j’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:77:65: warning: narrowing conversion of ‘k’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:77:65: warning: narrowing conversion of ‘p’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing]