Compilare: main.cpp: In function 'int main()': main.cpp:11:91: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'short unsigned int*' [-Wformat=] freopen("dijkstra.in","r",stdin),freopen("dijkstra.out","w",stdout),scanf("%d%d",&n,&m); ^ main.cpp:13:47: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'short unsigned int*' [-Wformat=] scanf("%d%d%d",&g[i].a,&g[i].b,&g[i].c); ^ main.cpp:13:47: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'short unsigned int*' [-Wformat=] main.cpp:13:47: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'short unsigned int*' [-Wformat=] main.cpp:17:16: warning: suggest parentheses around assignment used as truth value [-Wparentheses] for(o=i=1;i<=m;i++) ~^~ main.cpp:11:92: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.in","r",stdin),freopen("dijkstra.out","w",stdout),scanf("%d%d",&n,&m); ^ main.cpp:11:92: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:11:92: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:13:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&g[i].a,&g[i].b,&g[i].c); ^