Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:55:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~ main.cpp:64:54: warning: narrowing conversion of 'next' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] q.push_back ( { next, new_t, new_c } ); ^ main.cpp:64:54: warning: narrowing conversion of 'new_t' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] main.cpp:64:54: warning: narrowing conversion of 'new_c' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] main.cpp: In function 'int main()': main.cpp:122:39: warning: narrowing conversion of 'y' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] ad[x].push_back ( { y, t, c } ); ^ main.cpp:122:39: warning: narrowing conversion of 't' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] main.cpp:122:39: warning: narrowing conversion of 'c' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] main.cpp:123:39: warning: narrowing conversion of 'x' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] ad[y].push_back ( { x, t, c } ); ^ main.cpp:123:39: warning: narrowing conversion of 't' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing] main.cpp:123:39: warning: narrowing conversion of 'c' from 'int' to 'int_fast8_t {aka signed char}' inside { } [-Wnarrowing]