Compilare: main.cpp: In function 'int construire_lant()': main.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(i=0;i<la[u].size();i++) //arcele directe | ~^~~~~~~~~~~~~ main.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(j=0;j<la[i].size();j++) | ~^~~~~~~~~~~~~ main.cpp: In function 'void revizuieste_lant()': main.cpp:79:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | { for(i=0;i<la[t].size();i++) | ~^~~~~~~~~~~~~ main.cpp:86:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for(i=0;i<la[x].size();i++) | ~^~~~~~~~~~~~~ main.cpp:98:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 98 | {for(i=0;i<la[t].size();i++) | ~^~~~~~~~~~~~~ main.cpp:104:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | for(i=0;i<la[x].size();i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:135:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 135 | for(i=0;i<flux[1].size();i++) | ~^~~~~~~~~~~~~~~ main.cpp:121:21: warning: unused variable 'j' [-Wunused-variable] 121 | int x, y, c, i, j; | ^ main.cpp: In function 'void revizuieste_lant()': main.cpp:73:15: warning: 'w' may be used uninitialized in this function [-Wmaybe-uninitialized] 73 | int i,x,t,w,min_f=INT_MAX; | ^