segments.cpp:2:55: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
2 | const int N=6e5;long a[N],b[N],c[N],l,r,d[N],n,i;main(){scanf("%d",&n);for(i=1;i<=n;++i){scanf("%d",a+i);a[i]+=a[i-1];while(r-l&&a[i]-a[d[l+1]]>=b[d[l+1]])++l;c[i]=c[d[l]]+1;b[i]=a[i]-a[d[l]];while(b[d[r]]-b[i]>=a[i]-a[d[r]])--r;d[++r]=i;}printf("%d",c[n]);}
| ^
segments.cpp: In function 'int main()':
segments.cpp:2:65: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long int*' [-Wformat=]
2 | const int N=6e5;long a[N],b[N],c[N],l,r,d[N],n,i;main(){scanf("%d",&n);for(i=1;i<=n;++i){scanf("%d",a+i);a[i]+=a[i-1];while(r-l&&a[i]-a[d[l+1]]>=b[d[l+1]])++l;c[i]=c[d[l]]+1;b[i]=a[i]-a[d[l]];while(b[d[r]]-b[i]>=a[i]-a[d[r]])--r;d[++r]=i;}printf("%d",c[n]);}
| ~^ ~~
| | |
| | long int*
| int*
| %ld
segments.cpp:2:98: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long int*' [-Wformat=]
2 | const int N=6e5;long a[N],b[N],c[N],l,r,d[N],n,i;main(){scanf("%d",&n);for(i=1;i<=n;++i){scanf("%d",a+i);a[i]+=a[i-1];while(r-l&&a[i]-a[d[l+1]]>=b[d[l+1]])++l;c[i]=c[d[l]]+1;b[i]=a[i]-a[d[l]];while(b[d[r]]-b[i]>=a[i]-a[d[r]])--r;d[++r]=i;}printf("%d",c[n]);}
| ~^ ~~~
| | |
| | long int*
| int*
| %ld
segments.cpp:2:249: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
2 | const int N=6e5;long a[N],b[N],c[N],l,r,d[N],n,i;main(){scanf("%d",&n);for(i=1;i<=n;++i){scanf("%d",a+i);a[i]+=a[i-1];while(r-l&&a[i]-a[d[l+1]]>=b[d[l+1]])++l;c[i]=c[d[l]]+1;b[i]=a[i]-a[d[l]];while(b[d[r]]-b[i]>=a[i]-a[d[r]])--r;d[++r]=i;}printf("%d",c[n]);}
| ~^ ~~~~
| | |
| int long int
| %ld
segments.cpp:2:62: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
2 | const int N=6e5;long a[N],b[N],c[N],l,r,d[N],n,i;main(){scanf("%d",&n);for(i=1;i<=n;++i){scanf("%d",a+i);a[i]+=a[i-1];while(r-l&&a[i]-a[d[l+1]]>=b[d[l+1]])++l;c[i]=c[d[l]]+1;b[i]=a[i]-a[d[l]];while(b[d[r]]-b[i]>=a[i]-a[d[r]])--r;d[++r]=i;}printf("%d",c[n]);}
| ~~~~~^~~~~~~~~
segments.cpp:2:95: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
2 | const int N=6e5;long a[N],b[N],c[N],l,r,d[N],n,i;main(){scanf("%d",&n);for(i=1;i<=n;++i){scanf("%d",a+i);a[i]+=a[i-1];while(r-l&&a[i]-a[d[l+1]]>=b[d[l+1]])++l;c[i]=c[d[l]]+1;b[i]=a[i]-a[d[l]];while(b[d[r]]-b[i]>=a[i]-a[d[r]])--r;d[++r]=i;}printf("%d",c[n]);}
| ~~~~~^~~~~~~~~~